Wednesday, September 26, 2007

In Beach Enclave, Affluent at Odds Over Effluent

Jeff Clark for The New York Times

Hillary Hauser, an environmental activist, believes getting rid of septic tanks will make the water cleaner.

By REGAN MORRIS Published: September 25, 2007

RINCON POINT, Calif. — Septic tanks or sewers? The question of how to treat wastewater in this exclusive beachfront community is pitting neighbors, surfers and environmentalists against one another.

Surfers have long complained about getting sick at the world-class surf break here that straddles Ventura and Santa Barbara Counties. And blame for the pollution has long been laid on the septic tanks of the multimillion-dollar homes in the gated enclave of Rincon Point.

After nine years of debate and several lawsuits, homeowners are to vote next month on whether to convert from the tanks to a sewer system. While most residents appear to back the conversion, a vocal group of residents is questioning its wisdom, with several saying they feel bullied into paying for an expensive system that would only encourage more development and more pollution.

 

“There is no evidence that our septic tanks are polluting anything,” said a homeowner, Billy Taylor, who with his wife, Brook Harvey-Taylor, is a surfer and an outspoken opponent. “Are we cleaning up the ocean? Or are we just moving our waste into another part of the ocean?”

Tests in 1999 showed signs of human waste in a creek that runs through Rincon Point into the ocean. But no fecal coliform bacteria were found upstream, which proponents of a sewer system say proves the septic tanks are responsible.

Opponents of the change say that since 1999 malfunctioning or old septic tanks have been repaired or replaced. Lauren Orlando, a wastewater expert from Boston University whom they brought in, said that the tests proved nothing and that the bacteria could have come from the diaper of a child swimming in the creek or ocean.

If the sewer vote passes, the owners of Rincon Point’s 72 homes will have to pay about $80,000 each to build the infrastructure to hook up to the waste treatment center in the city of Carpinteria, next to Rincon. The state would contribute about $2.1 million.

In part because Rincon Point property is so valuable — a beachfront cottage considered a “tear down” by at least one agent is now listed for $4.4 million — most residents can afford to pay, either up front or over 30 years.

An environmental advocacy group, Heal the Ocean, has been pushing for sewers for nine years. But Hillary Hauser, who recounts founding the group because surfers asked her to help clean the water off Rincon Point, says “misinformation” could derail the project. Ms. Hauser pointed to what the Carpinteria Sanitary District’s general manager, Craig Murray, said were “absurd” reports that homeowners were being asked to bankroll the project because it is critical to developers of a proposed resort.

Still, Ms. Hauser was optimistic the sewer project would pass because of homeowners like Steve Halsted, who says the “silent majority” of residents support the sewer.

Mr. Halsted said the public perception of Rincon Point was of “ a lot of rich people polluting their ocean.”

“It’s time we do the right thing and get off of our septics and onto sewers and get this cloud away from us,” he said.

Some homeowners also say they want sewers so they can add bathrooms and bedrooms to their homes and not have to worry about litigation or alternative treatment systems that could require permits.

The ballots, which have been mailed to homeowners, will be tallied at a public meeting in Carpinteria on Oct. 16.

If the sewer is turned down and more fecal bacteria is found, enforcement action against individual homeowners is possible, said Harvey Packard of the Central Coast Regional Water Quality Control Board. But it is not clear how violators would be identified. Ms. Hauser speculated that homeowners could be required to put dye in their tanks, so polluters could be singled out.

Hugh Kaufman, a senior engineer with the federal Environmental Protection Agency in Washington, said that too often sewers were thought of as the only solution for water pollution.

“In Rincon, it appears to me the biggest problem for the ocean is the discharge from the sanitary district going into the ocean,” Mr. Kaufman said. “If it is a problem with a particular septic tank, that’s easy and cheap to fix, a heck of a lot cheaper than sewering an area.”

But Mr. Murray and Ms. Hauser noted that the district dumps treated water into the ocean 1,000 feet offshore — not into Rincon Point’s creek.

In Southern California, it is common practice for people to stay out of the water for days after rain because of runoff pollution. But surfers often opt to take their chances in places like Rincon Point and Malibu, which has problems similar to Rincon Point’s.

“I don’t think you can blame the septic tanks for the pollution,” said Ray Gann, who has been surfing Rincon since 1962. “We get surfers getting sick up and down the coast.”

Other surfers disagree. Wayne Babcock, a cofounder of Clean Up Rincon Effluent, said that the beach at Rincon Point was “notorious” for making surfers sick and that the homeowners should be forced to stop using septic tanks. When asked why they continue surfing here, Mr. Babcock and other surfers waxed poetic.

“You don’t have a choice,” Mr. Babcock said. “It’s Rincon. There’s nothing like it.”

Posted by M at 03:14:29 | Permalink | No Comments »

Tuesday, September 25, 2007

Unlike its neighbor, L.A. goes with the flow

As Long Beach enacts restrictions on water use in advance of a potential crisis, the DWP takes a wait-and-see approach.
By Steve Hymon, Los Angeles Times Staff Writer September 24, 2007

Long Beach has a population of almost half a million, making it the second largest city in the county of Los Angeles and the fifth most populous in the state.

As you may have read, water officials there recently looked at the prospect of tightening water supplies and decided the outlook was bleak enough to impose restrictions.

The new rules are hardly draconian, but they do have some bite. Lawn watering is now allowed only three days per week, the time that sprinkler systems are allowed to run has been limited and daytime watering has been prohibited.

Long Beach’s decision is intriguing, in part, because the largest city in the county, Los Angeles, has not imposed such rules. Instead, Mayor Antonio Villaraigosa asked residents this summer to voluntarily cut their usage by 10%.

Long Beach residents already use less water on average than L.A. residents — 121 gallons per day versus 141 in 2006. Which leads to the question. . .

Is Long Beach jumping the gun, or is Los Angeles sticking its head in the sand?


This is hard to say without the ability to predict the weather. In the winter of 2004-05, for example, the city of Los Angeles had its second-wettest year on record. Last winter was its driest. This year: Who knows? Despite the rainy weekend, forecasters are saying it could be a drier-than-normal year in the Southwest.

In Long Beach, officials insist they’re simply trying to prepare residents for a time when water resources grow more scarce and thus more expensive. Besides the ongoing drought, they also point to projections of a diminishing snowpack in California and the West, courtesy of global warming.

There is also the prospect that the amount of water pumped into the California Aqueduct from the Sacramento-San Joaquin Delta could be curtailed to protect the endangered delta smelt.

“We are preparing our customers for a water supply emergency,” said Ryan Alsop, spokesman for the Long Beach Water Department. “It may happen, it may not happen. But we think it’s likely, and we wanted our community to be the absolute best-prepared community in Southern California to deal with it.”

Alsop added, “We should be doing these things year-round. Water is a finite resource as it is. . . . We’re owning up to the fact that we’re wasting water.”

Although the city can issue citations to violators, it is not planning to do that, nor is it known if the new rules will become permanent. Alsop said the goal, for now, is to educate residents. He also said he doesn’t believe the watering restrictions will send anyone’s landscaping off to the gallows.

The city is encouraging residents to report those who are wasting water. The Long Beach Water Department has even produced two YouTube videos. One of them shows a man leisurely hosing down a sidewalk — a no-no under the new water restrictions — and provides a phone number ([562] 570-2455) residents can call to rat each other out. A complete list of restrictions is at www.lbwater.org.

And what are Los Angeles officials saying?

“I think there are a number of factors on the horizon and they will come to a head very quickly,” said David Nahai, president of the Department of Water and Power board. “At that point we’ll be able to make a decision. If all of a sudden we get mounds of snow in the Sierra or we get a great deal of rainfall, imposing an additional, onerous burden will be uncalled for.

“And what will we do next time? Will we be taken seriously?”

Nahai said he believes the call for voluntary conservation in L.A. is analogous to what Long Beach is doing, since Long Beach is not fining violators. Nahai said too that the supply situation is different for Los Angeles.

Both cities rely on groundwater wells and water purchased from the Metropolitan Water District, which imports water from Northern California and the Colorado River. But Los Angeles also owns a pair of aqueducts to import water from the Eastern Sierra.

Most provocatively, Nahai said that he’s open in the future to using higher water rates as a way to “encourage” people to stop wasting water. That’s not something you hear often from high-ranking water officials.

As for imposing restrictions, he said that is something the DWP board would do only after consulting with the mayor, who appoints its members.

Attentive readers may recall that when The Times earlier this summer asked Villaraigosa about his big water bills at his Mount Washington home in 2006, the mayor invoked the Caddyshack Doctrine and said that gophers chewed into the sprinkler system and caused leaks.

How bad is the water situation at the moment?

Generally speaking, many of the largest reservoirs in the state are at levels below where they usually are at the end of summer.

Let’s take a look at some numbers: Lake Shasta in Northern California, the state’s largest reservoir, was only 43% filled as of Wednesday — about 72% of its average capacity this time of year.

Oroville and San Luis reservoirs — which serve Southern California via the California Aqueduct — were at 46% and 28% of capacity, respectively, and are both well under their averages for this date. On the Colorado River, Lake Mead and Lake Powell were about half-filled, thanks to eight years of drought in the Rocky Mountains.

The DWP’s Crowley Lake in the Eastern Sierra was at 57% capacity through August, about 81% of its average for that date. On the other hand, the MWD’s massive Diamond Valley Lake was almost at 90% of its capacity.

Still, one reason that the region isn’t in deeper water trouble is, since there are so many reservoirs, the state and region have effectively built a multiyear buffer against drought. Equally important, it also has helped Los Angeles that conservation has taken hold in recent years.

As the accompanying chart illustrates, in 1980 the average Angeleno used 178 gallons of water each day. After rising in the 1980s, that number has fallen and was 141 in 2006, thanks to water-saving technology such as low-flow toilets, officials say. That’s a number that compares favorably with many other cities in the state — residents in the San Diego area used 173 gallons a day last year.

But here’s the problem: Per capita use may be down in L.A., but because of population growth, overall water use is up — from 192.7 billion gallons in 1980 to 193.6 billion in 2005 and 200.7 billion in 2006. If the population is going to keep growing — and if history is an indicator, it will — then per capita usage has to keep falling for total demand to stay flat.

If demand doesn’t, cities will either have to build more dams — ignoring the environmental consequences and that most of the best sites have been taken — or pray that the predictions about global warming are wrong and the snowpack actually increases in the 21st century.

Or, elected officials can draw a line in the sand and say, once and for all, that in a semi-arid climate, wasteful practices simply will not be tolerated.

Posted by M at 04:58:01 | Permalink | No Comments »

Tuesday, September 18, 2007

Building a Dam in a Bid to End Afghan Instability

Joao Silva for The New York Times

Repairs of the half-century-old dam at Kajaki Reservoir may cost up to $500 million. It is the largest project planned by the U.S.

By CARLOTTA GALL Published: September 18, 2007

KAJAKI DAM, Afghanistan — The police posts on the hilltops around Kajaki Dam look out over empty villages and a deserted bazaar, where weeds grow and rubbish blows down the street. The population left a year and a half ago and only a few hundred people remain here, most of them soldiers and police officers guarding Afghanistan’s jewel of industry, its largest hydroelectric dam, against Taliban insurgents.

In The Middle
Joao Silva for The New York Times
The Taliban are dug in a few miles beyond the dam and have cut off access roads in otherwise deserted villages like Tangy.
The New York Times
Helmand is the most problematic of Afghan provinces.

The Taliban are dug in a few miles beyond in otherwise deserted villages and have cut off all access roads, holding this tiny community in a stranglehold. British troops, here for the last eight months, have held them back, but only enough to create a security bubble some four miles in diameter around the dam.

This is where the United States government plans its largest project in Afghanistan, the repair and upgrade of the half-century-old dam, which American officials say will cost $150 million during its first year and up to $500 million in total. The project will include the construction of a 55-mile road to the dam through Taliban-held country, the installation of an additional turbine and the building of new transmission lines and substations to bring electricity to 1.7 million people in southern Afghanistan. American officials say more than 4,000 jobs will be created at the height of construction.

An ambitious project, considering that Kajaki lies in northern Helmand province — the most problematic of all Afghanistan’s provinces, with uncontrolled poppy cultivation and at least half the land under the control of Taliban insurgents, drug lords and smugglers. Heavy fighting between insurgents and American and NATO forces occurs daily.

Yet for those very reasons, the United States Agency for International Development, the government agency coordinating American aid projects in Afghanistan, is focusing on Helmand like no other province. Alongside plans for the Kajaki Dam, it is supporting agricultural, educational and health programs in an attempt to wean farmers off poppy cultivation and workers away from fighting.

“We are developing a strategy as if Helmand were a country,” said a Usaid official, who did not wish to be identified, citing agency policy. “If Helmand was a country, it would be the fifth largest Usaid country project in the world,” he said.

Yet the violence in Helmand, which escalated last year as the Taliban swarmed in while British troops were deploying to the province, has already delayed work on the Kajaki Dam for a year. Even if the situation improves enough to start work on the road in the coming months, the installation of a new turbine, which is too heavy to be airlifted and has to be trucked in, and new transmission lines will not be completed until the end of 2008.

In the tiny community of British soldiers and local police officers and security guards living at Kajaki, that is unbearably far off. They live in limbo, cut off from normal life, unable to travel far beyond the camp or the deserted bazaar for fear of the Taliban. The policemen have not had relief or seen their families in more than a year and a half and went unpaid until recently.

Some foreign assistance did come to Kajaki after the fall of the Taliban in 2001, Afghan engineers at the dam said. Germans repaired one of the two American Westinghouse turbines installed at the dam in 1975, bringing it back up to its full 18-megawatt capacity. A Chinese company was to begin work on a new turbine. Indians repaired a crane in the power station at the base of the 300-foot-high dam, and Americans built housing for foreign workers and hired guards.

But when the Taliban moved into the area last year and rained rockets down on the camp, the foreigners pulled out, and many Afghan civilians left as well. The foreigners’ promises of development, including a clinic, a school and roads, evaporated.

“People are thinking they are not serious,” said Muhammad Zaman, 43, the engineer on duty at the power station one afternoon. “It is six years they are promising,” he said.

Yet the power station workers — 43 workers on 24-hour shifts — keep coming to work from nearby villages and have managed to persuade the Taliban to let them cross the front line.

“We always talk to the Taliban and tell them this is an important project — it will bring more electricity and save on oil, power, and will save water,” Mr. Zaman said. “To some extent they agree, but there are some who come from Pakistan, and they are saying that the project should not go forward.”

The Taliban leadership is widely believed to be operating out of the city of Quetta in Pakistan and has sought to disrupt assistance programs and prevent people from cooperating with the government and foreign forces.

The civilians of the Kajaki area are suffering the most from the standoff, driven from their homes and unable to farm their fields, the workers said.

“I am worried about the villagers,” said Haji Abdul Razziq, the district chief. “They are poor and now they are scattered in the desert, living under trees and bushes, beneath the mountains. They are in a very bad situation, between life and death. Seven children have died from the severe heat.”

Mr. Abdul Razziq said that an old man had come to see him and told him he was going around begging at night because he was so ashamed to be seen.

The winter would be worse for the 600 families who have been displaced from their homes south of the camp, he warned. Hundreds more have left villages to the north.

“The only way to help them is to clear the Taliban away completely from the area, then you can help the people,” Mr. Abdul Razziq said. “At the moment the enemy has become so weak, they just need a slight push.”

Yet when British troops conducted a patrol to the village of Mazdurak, just a few miles to the north, they came under fire from three directions and had to call in a deafening barrage of artillery and air support to knock the Taliban out.

There will be little relief for the displaced families in the coming months, let alone progress on the dam, British soldiers warned. So far, their orders are only to preserve the four-mile buffer zone while the bulk of British forces in Helmand concentrate on areas farther south.

“It’s a huge undertaking to build and secure a route to get equipment in,” said Maj. Tony Borgnis, a company commander with the Royal Anglian Regiment, which has been fighting the Taliban farther south for the last five months. “I cannot see it happening in my tenure,” he said.

Posted by M at 13:15:12 | Permalink | No Comments »

Wednesday, September 5, 2007

Healing the Lake

A key battle in the effort to restore Tahoe’s once-pristine waters to crystal clarity is being waged in little-known marshland on the Upper Truckee River

Peter Fimrite, Chronicle Staff Writer Wednesday, September 5, 2007

Bruce Eisner tromped past a half-dozen geese lolling in the water, marched across the muddy shoreline and stopped on the grassy bank of the Upper Truckee River.

It was a brilliant warm day at Lake Tahoe, the forested mountains rising spectacularly all around, but Eisner was focused on a bit of scenery that few people on the bustling south shore even notice.

As the program manager for the California Tahoe Conservancy, his work and passion is the restoration of the Upper Truckee Marsh, the largest wetlands system in the Lake Tahoe Basin and the source of about a third of all the water - and most of the sediment - that flows into the famous lake.

“That’s the man-made channel,” he said, pointing from the bank upriver toward a long, straight water-filled gully carved into the earth. “The river was altered so significantly, it became like a ditch.”

The marsh and river system, next to the Tahoe Keys Marina in the heart of South Lake Tahoe, is where one of the biggest pushes is being made to restore the water of Lake Tahoe to the crystal-clear prism it was before development brought pollution.

The effort is, in many respects, a symbol for the entire region, which is still suffering from the effects of massive home and commercial construction from the 1950s through the 1970s. Scientists believe the buildings, asphalt and lack of proper drainage are responsible for sending pollutants flowing into the once-pristine lake, causing algae buildup and drastically reducing water clarity over the past 40 years.

The drainage issues are exacerbated by vehicles spewing air pollution and dripping oil and gasoline and by conflagrations like the recent Angora Fire, which consumed large sections of forest that was overgrown as a result of fire-protection activities over the past century.

More than 50 public and private organizations, led by the Tahoe Regional Planning Agency and the Tahoe Conservancy, have joined forces over the past decade to address the problem, creating the Lake Tahoe Environmental Improvement Program. It has become a national campaign, fueled in part by the ubiquitous “Keep Tahoe Blue” bumper stickers from the League to Save Lake Tahoe.

One of the top priorities is the Upper Truckee Marsh, which once covered 1,100 acres. It was partially filled with tons of dirt, and the river was channelized by developers starting in the 1950s. The plan was to build a massive lakeside housing development, but lawsuits blocked the way.

Years of litigation resulted in the 1988 purchase by the Tahoe Conservancy of 208 acres and then, in 2000, of the remaining 311 acres of undeveloped marshland, including 1,400 feet along the lake shore. The rest is still privately owned.

More than 80,000 cubic yards of landfill has been removed, and 11 acres of marshland has been restored, but the Upper Truckee and its primary tributary, Trout Creek, are still the single largest source of sediment flowing into the lake.

It will take years, and millions of dollars, to restore the rest of the marsh and set the river on a more natural course through the wetlands. Still, the project is considered crucial in the fight to improve the clarity of Lake Tahoe, the measuring stick by which environmentalists assess the ecosystem of the entire region.

“A wetland like this, at the terminus of a river, is really the last place where the heavy sediments can be deposited,” Eisner said. “The wetlands act like a sponge, sucking up the bad stuff before it enters the lake.”

The problem isn’t limited to the Upper Truckee. About 75 percent of Tahoe marshlands and 50 percent of the meadow habitat was altered during the building boom. Not far from the marsh project is a giant intersection known as “The Y,” a place where a person can see only buildings, asphalt and concrete without a single stretch of open ground or natural vegetation.

“We would like to see this redeveloped,” said Julie Regan, communications and legislative affairs chief for the Tahoe Regional Planning Agency, which was created by California and Nevada in 1969 with the goal of protecting Lake Tahoe. “It’s this kind of coverage of the ground that has more impact on the lake than anything else.”

The environmental push in Lake Tahoe began in earnest in 1997 when President Bill Clinton held the first of what has become an annual forum on the lake ecosystem, a meeting that led to the creation of the Environmental Improvement Program.

Clinton reprised his role two weeks ago on the 10th anniversary of that gathering, telling a crowd of more than 1,000 people, including Sen. Dianne Feinstein, D-Calif., and Senate Majority Leader Harry Reid, D-Nev., that “we owe the world the preservation of Lake Tahoe.”

“It’s not just for you, your children and your grandchildren,” he said. “It’s for everyone who might ever visit.”

Federal officials announced they would contribute another $45 million to the restoration effort. Over the past decade, $1.1 billion has been spent on 266 restoration projects around the lake, from new roads and drainage to runoff basins and stiff construction requirements.

In all, more than 3,000 acres of private property have been purchased for open space and public use, 739 acres of wetlands have been restored, 374 acres of denuded land have been revegetated, and public pathways and mass transportation has been improved. The U.S. Forest Service and California’s state park system, which own 85 percent of the land area in the Tahoe Basin, have thinned more than 21,000 acres of overgrown forest in an effort to reduce fire danger and prevent erosion.

Despite all the efforts, conditions appear to be getting worse.

The lake is warmer and soupier than ever before, according to a 45-page study released in August by UC Davis scientists. The report, the most comprehensive ever done on the lake, outlines significant changes in weather patterns over the years, including less snowfall and more rain, deteriorating lake clarity and increasing water temperature in the Lake Tahoe Basin, which is encouraging invasions of exotic fish and plant species.

The average temperature of the surface water in July has increased almost 5 degrees since 1999. On July 26, 2006, it was 78 degrees, the warmest in Lake Tahoe’s recorded history, according to the report.

As of last year, the study found, Lake Tahoe was clear to an average depth of 67.7 feet. That’s 4.6 feet less than in 2005. When measurements began in 1968, the lake was clear to an average depth of 102.4 feet.

Regan insisted things are improving, but clearing the lake of pollutants and sediment may take awhile. Lake Tahoe is the second-deepest lake in the nation behind Oregon’s Crater Lake. It is so deep, at 1,645 feet, that a drop of water entering from one of its 63 tributaries will take 700 years to find its way out, according to scientists.

“We’re actually fixing a lot of the environmental damage that occurred in the past,” said Regan, pointing out that only 5,000 of the 42,000 developed properties in the Lake Tahoe Basin were built within the past 20 years.

“Healing the lake is a long process,” she said. “The scientists say it is possible to get back to 100 feet clarity in 20 or 30 years if we make some hard choices.”

Redevelopment is one of the choices that might begin to pay dividends. The Tahoe City Public Utility District recently completed a major renovation of the dam separating the lake from the Truckee River, building a park plaza and bicycle/pedestrian trail.

In an area where plumes of brown runoff could once be seen flowing into the river and lake, native vegetation, gutters, drains and an underground filtration system now capture storm water.

A newly built park at Commons Beach uses similar drainage techniques to reduce runoff into the lake. Miles of bicycle trails are being laid and sidewalks with drainage systems have been installed throughout Tahoe City.

“The reason it was done was to capture the water and improve the drainage and we took it a step further and decided if we are going to do that, let’s make it a walkable town,” said Ron Treabess, director of partnerships and planning for the North Lake Tahoe Resort Association, a nonprofit organization that works with Placer County on how to spend hotel tax money. “We need it for the people who live here. We need it for the visitors and to take care of the lake.”

Similar redevelopment projects are being planned around the lake. Officials also hope to improve bus and shuttle service in the region and establish local and cross-lake ferry systems to ease congestion on the roadways.

Ultimately, keeping Lake Tahoe blue as the bumper sticker commands will require a long-term commitment and collaborative effort among all the stake-holders, including homeowners.

Eisner said he believes the restoration of the Upper Truckee marsh can be completed by 2010, but, like most projects in Lake Tahoe, it will take a collective will to overcome the inevitable squabbles over exactly how the project should proceed.

“Restoring the lake and the various related habitat features is not a decade process, it is a multi-decade process,” Eisner said. “This is a big lake, and it is not going to change overnight.”

Online resources

Lake Tahoe Environment Improvement Program:

links.sfgate.com/ZRQ

Tahoe Regional Planning Agency:

www.trpa.org

Tahoe Conservancy:

www.tahoecons.ca.gov

League to Save Lake Tahoe:

www.keeptahoeblue.org

E-mail Peter Fimrite at pfimrite@sfchronicle.com

This article appeared on page A - 1 of the San Francisco Chronicle

Posted by M at 14:27:13 | Permalink | No Comments »

Thursday, August 30, 2007

More people, more concrete, and lots more heat in Phoenix

An ‘urban heat island’ effect, fed by the city’s growth, is trapping heat and making temperatures soar.
| Staff writer of The Christian Science Monitor
from the August 30, 2007 edition - http://www.csmonitor.com/2007/0830/p01s01-wogi.html

Arizona is poised to take another record. It’s about as unwelcome as a couple of other firsts – No. 1 in the nation for most illegal immigrants crossing the border, or No. 1 in the nation for identity thefts.

This “one” directly corresponds with another No. 1 – its status as the fastest-growing state in the nation. While news of global warming becomes as common as the wheeze of air conditioners here, Phoenix is fighting a different, if related, problem. In part because of heavy growth – particularly in the Phoenix metro area – heat is being reflected, trapped, and absorbed in concrete, rooftops, and a maze of buildings that blocks wind. At the same time, there’s little vegetation to absorb the heat, and high energy usage generates more.

It’s called the “urban heat-island effect,” and whatever the impact of global warming here, this phenomenon is sending the mercury rising. On Tuesday, Phoenix tied the all-time record of 28 days at 110 degrees or greater in one summer, reached in 1979 and again in 2002. If the temperature rises to 110 degrees one more day this year, Phoenix will set a record.

 

“We’re forecasting 111 for Wednesday, 109 for Thursday, and 110 again on Friday,” says Keith Kincaid, a forecaster with the National Weather Service here. But if the temperature doesn’t hit 110 on those days, he adds, “we have had 110-degree days in September before.”

This summer is hot elsewhere, to be sure. But in few places can you fry an egg on a sidewalk as quickly and thoroughly as you can here. And you’d have to fry a lot of them: Experts say the main reason the number of 110-degree-or-higher days has risen so steadily – and steeply – is rapid growth. In the 1950s, for example, the temperature rose to 110 or higher an average of 6.7 days per year. In the 1960s it was 10.3 days per year; in the 1980s it was 19 days per year, and in the 2000s (through Aug. 21, 2007), 21.9 per year, according to the National Weather Service.

For Westerners living here, it’s about as much fun as an earthquake, a drought, or, well, a 110-degree day. But it does have people’s attention. True, it’s not as difficult as this summer’s devastating floods or fires elsewhere in the US. Many people have swimming pools, and most have air conditioning. But that, too, adds to the problem of the heat-island effect, experts say.

“Every time you use that mechanical air conditioner, you’re throwing hot air back into the environment,” says Jay Golden, an expert on urban climate and energy at Arizona State University in Tempe. “It’s not only the sun and the pavement, but we’re generating more heat because of human adaptation.” And that’s where global warming comes in: The hotter it is, the more we need to cool off; and the more we try to cool off – with air conditioning, for instance – the more heat-trapping greenhouse gases and “waste energy” we create, feeding both phenomena.

No escape in the Phoenix nights

The lows at night are rising, too. Three decades ago, the nighttime low here was about 30 degrees cooler than the days. Today, it is on average only 20 degrees cooler. That’s because cities are slower to cool off at night, retaining their heat in roads and buildings.

Dr. Golden points to differing temperatures between downtown Phoenix and a rural weather station at the Casa Grande National Monument, about 50 miles southeast. In 1950, he says, it was only six degrees warmer in Phoenix than at the Casa Grande Monument. By 2000, the temperature in Phoenix was 12 degrees higher. Now, it is almost 14 degrees warmer in the city than in the adjacent rural areas.

That has a huge impact on water consumption and electricity generation, he says. Researchers in his department recently calculated the correlation between nighttime temperatures and water consumption. “A one-degree nighttime [temperature] increase equals 677 gallons more on average per household per year,” he says – due as much to evaporation from pools, irrigation, and agriculture as to human consumption. Golden and his colleagues study these rises in temperatures for urban areas from here to London and Beijing.

“We are trying to do two things,” Golden says. “One is to quantify the impacts from this national trend of climate change in the broad context…. Then, we try to provide policymakers sound science and engineering to understand what the impacts are.”

Looking toward solutions

Here in the Phoenix area, for example, 40 percent of the heat-island effect is due to paved surfaces, according to Golden. “We’re trying to transition to pervious pavement, which would allow for water penetration,” he says.

That, he adds, would support the growth of urban vegetation, which is typically removed for new building projects. And urban vegetation planted at intervals, as well as the water pervious pavement retains, would lead to cooler temperatures at night.

“If we were to take all the surfaced parking lots in this city and cover them with 50 percent tree cover,” that would significantly decrease the surface temperatures, he says. His department is also studying the survival methods of this area’s early inhabitants, such as the Hohokam with their earthen structures.

Today, two-story houses are popular, he says. But what if policymakers were to ban future building of two-story houses – or at least upper floors – in order to make buildings shorter, and less prone to trapping heat. Instead, housing plans could include basements, he says, which would naturally remain cooler – though the prospect of lower levels has long been considered too expensive or difficult, despite the plethora of inground pools.

The good news about these rises in temperatures, if there is any, Golden says, is that local governments are beginning to pay attention to how they design cities, how closely they space houses, and how much forestry and agriculture they plan.

Phoenix, for example, is pushing for more open-space parks with trees downtown. And the city of Mesa is offering $500 rebates to residents who convert their yards from lawns to xeriscape, including desert trees that provide canopy shade.

Posted by M at 21:15:40 | Permalink | No Comments »

Sunday, August 26, 2007

As China Roars, Pollution Reaches Deadly Extremes

Chang W. Lee/The New York Times

China’s industrial growth depends on coal, which is plentiful but polluting, from strip mines like this one in Shenmu, Shaanxi Province.

By JOSEPH KAHN and JIM YARDLEY Published: August 26, 2007

BEIJING, Aug. 25 — No country in history has emerged as a major industrial power without creating a legacy of environmental damage that can take decades and big dollops of public wealth to undo.

But just as the speed and scale of China’s rise as an economic power have no clear parallel in history, so its pollution problem has shattered all precedents. Environmental degradation is now so severe, with such stark domestic and international repercussions, that pollution poses not only a major long-term burden on the Chinese public but also an acute political challenge to the ruling Communist Party. And it is not clear that China can rein in its own economic juggernaut.

Public health is reeling. Pollution has made cancer China’s leading cause of death, the Ministry of Health says. Ambient air pollution alone is blamed for hundreds of thousands of deaths each year. Nearly 500 million people lack access to safe drinking water.

Chinese cities often seem wrapped in a toxic gray shroud. Only 1 percent of the country’s 560 million city dwellers breathe air considered safe by the European Union. Beijing is frantically searching for a magic formula, a meteorological deus ex machina, to clear its skies for the 2008 Olympics.

Environmental woes that might be considered catastrophic in some countries can seem commonplace in China: industrial cities where people rarely see the sun; children killed or sickened by lead poisoning or other types of local pollution; a coastline so swamped by algal red tides that large sections of the ocean no longer sustain marine life.

China is choking on its own success. The economy is on a historic run, posting a succession of double-digit growth rates. But the growth derives, now more than at any time in the recent past, from a staggering expansion of heavy industry and urbanization that requires colossal inputs of energy, almost all from coal, the most readily available, and dirtiest, source.

“It is a very awkward situation for the country because our greatest achievement is also our biggest burden,” says Wang Jinnan, one of China’s leading environmental researchers. “There is pressure for change, but many people refuse to accept that we need a new approach so soon.”

China’s problem has become the world’s problem. Sulfur dioxide and nitrogen oxides spewed by China’s coal-fired power plants fall as acid rain on Seoul, South Korea, and Tokyo. Much of the particulate pollution over Los Angeles originates in China, according to the Journal of Geophysical Research.

More pressing still, China has entered the most robust stage of its industrial revolution, even as much of the outside world has become preoccupied with global warming.

Experts once thought China might overtake the United States as the world’s leading producer of greenhouse gases by 2010, possibly later. Now, the International Energy Agency has said China could become the emissions leader by the end of this year, and the Netherlands Environment Assessment Agency said China had already passed the milestone.

For the Communist Party, the political calculus is daunting. Reining in economic growth to alleviate pollution may seem logical, but the country’s authoritarian system is addicted to fast growth. Delivering prosperity placates the public, provides spoils for well-connected officials and forestalls demands for political change. A major slowdown could incite social unrest, alienate business interests and threaten the party’s rule.

But pollution poses its own threat. Officials blame fetid air and water for thousands of episodes of social unrest. Health care costs have climbed sharply. Severe water shortages could turn more farmland into desert. And the unconstrained expansion of energy-intensive industries creates greater dependence on imported oil and dirty coal, meaning that environmental problems get harder and more expensive to address the longer they are unresolved.

China’s leaders recognize that they must change course. They are vowing to overhaul the growth-first philosophy of the Deng Xiaoping era and embrace a new model that allows for steady growth while protecting the environment. In his equivalent of a State of the Union address this year, Prime Minister Wen Jiabao made 48 references to “environment,” “pollution” or “environmental protection.”

The government has numerical targets for reducing emissions and conserving energy. Export subsidies for polluting industries have been phased out. Different campaigns have been started to close illegal coal mines and shutter some heavily polluting factories. Major initiatives are under way to develop clean energy sources like solar and wind power. And environmental regulation in Beijing, Shanghai and other leading cities has been tightened ahead of the 2008 Olympics.

Yet most of the government’s targets for energy efficiency, as well as improving air and water quality, have gone unmet. And there are ample signs that the leadership is either unwilling or unable to make fundamental changes.

Land, water, electricity, oil and bank loans remain relatively inexpensive, even for heavy polluters. Beijing has declined to use the kind of tax policies and market-oriented incentives for conservation that have worked well in Japan and many European countries.

Provincial officials, who enjoy substantial autonomy, often ignore environmental edicts, helping to reopen mines or factories closed by central authorities. Over all, enforcement is often tinged with corruption. This spring, officials in Yunnan Province in southern China beautified Laoshou Mountain, which had been used as a quarry, by spraying green paint over acres of rock.

President Hu Jintao’s most ambitious attempt to change the culture of fast-growth collapsed this year. The project, known as “Green G.D.P.,” was an effort to create an environmental yardstick for evaluating the performance of every official in China. It recalculated gross domestic product, or G.D.P., to reflect the cost of pollution.

But the early results were so sobering — in some provinces the pollution-adjusted growth rates were reduced almost to zero — that the project was banished to China’s ivory tower this spring and stripped of official influence.

Chinese leaders argue that the outside world is a partner in degrading the country’s environment. Chinese manufacturers that dump waste into rivers or pump smoke into the sky make the cheap products that fill stores in the United States and Europe. Often, these manufacturers subcontract for foreign companies — or are owned by them. In fact, foreign investment continues to rise as multinational corporations build more factories in China. Beijing also insists that it will accept no mandatory limits on its carbon dioxide emissions, which would almost certainly reduce its industrial growth. It argues that rich countries caused global warming and should find a way to solve it without impinging on China’s development.

Indeed, Britain, the United States and Japan polluted their way to prosperity and worried about environmental damage only after their economies matured and their urban middle classes demanded blue skies and safe drinking water.

But China is more like a teenage smoker with emphysema. The costs of pollution have mounted well before it is ready to curtail economic development. But the price of business as usual — including the predicted effects of global warming on China itself — strikes many of its own experts and some senior officials as intolerably high.

“Typically, industrial countries deal with green problems when they are rich,” said Ren Yong, a climate expert at the Center for Environment and Economy in Beijing. “We have to deal with them while we are still poor. There is no model for us to follow.”

In the face of past challenges, the Communist Party has usually responded with sweeping edicts from Beijing. Some environmentalists say they hope the top leadership has now made pollution control such a high priority that lower level officials will have no choice but to go along, just as Deng Xiaoping once forced China’s sluggish bureaucracy to fixate on growth.

But the environment may end up posing a different political challenge. A command-and-control political culture accustomed to issuing thundering directives is now under pressure, even from people in the ruling party, to submit to oversight from the public, for which pollution has become a daily — and increasingly deadly — reality.

Perpetual Haze

During the three decades since Deng set China on a course toward market-style growth, rapid industrialization and urbanization have lifted hundreds of millions of Chinese out of poverty and made the country the world’s largest producer of consumer goods. But there is little question that growth came at the expense of the country’s air, land and water, much of it already degraded by decades of Stalinist economic planning that emphasized the development of heavy industries in urban areas.

For air quality, a major culprit is coal, on which China relies for about two-thirds of its energy needs. It has abundant supplies of coal and already burns more of it than the United States, Europe and Japan combined. But even many of its newest coal-fired power plants and industrial furnaces operate inefficiently and use pollution controls considered inadequate in the West.

Expanding car ownership, heavy traffic and low-grade gasoline have made autos the leading source of air pollution in major Chinese cities. Only 1 percent of China’s urban population of 560 million now breathes air considered safe by the European Union, according to a World Bank study of Chinese pollution published this year. One major pollutant contributing to China’s bad air is particulate matter, which includes concentrations of fine dust, soot and aerosol particles less than 10 microns in diameter (known as PM 10).

The level of such particulates is measured in micrograms per cubic meter of air. The European Union stipulates that any reading above 40 micrograms is unsafe. The United States allows 50. In 2006, Beijing’s average PM 10 level was 141, according to China’s National Bureau of Statistics. Only Cairo, among world capitals, had worse air quality as measured by particulates, according to the World Bank.

Emissions of sulfur dioxide from coal and fuel oil, which can cause respiratory and cardiovascular diseases as well as acid rain, are increasing even faster than China’s economic growth. In 2005, China became the leading source of sulfur dioxide pollution globally, the State Environmental Protection Administration, or SEPA, reported last year.

Other major air pollutants, including ozone, an important component of smog, and smaller particulate matter, called PM 2.5, emitted when gasoline is burned, are not widely monitored in China. Medical experts in China and in the West have argued that PM 2.5 causes more chronic diseases of the lung and heart than the more widely watched PM 10.

Perhaps an even more acute challenge is water. China has only one-fifth as much water per capita as the United States. But while southern China is relatively wet, the north, home to about half of China’s population, is an immense, parched region that now threatens to become the world’s biggest desert.

Farmers in the north once used shovels to dig their wells. Now, many aquifers have been so depleted that some wells in Beijing and Hebei must extend more than half a mile before they reach fresh water. Industry and agriculture use nearly all of the flow of the Yellow River, before it reaches the Bohai Sea.

In response, Chinese leaders have undertaken one of the most ambitious engineering projects in world history, a $60 billion network of canals, rivers and lakes to transport water from the flood-prone Yangtze River to the silt-choked Yellow River. But that effort, if successful, will still leave the north chronically thirsty.

This scarcity has not yet created a culture of conservation. Water remains inexpensive by global standards, and Chinese industry uses 4 to 10 times more water per unit of production than the average in industrialized nations, according to the World Bank.

In many parts of China, factories and farms dump waste into surface water with few repercussions. China’s environmental monitors say that one-third of all river water, and vast sections of China’s great lakes, the Tai, Chao and Dianchi, have water rated Grade V, the most degraded level, rendering it unfit for industrial or agricultural use.

Grim Statistics

The toll this pollution has taken on human health remains a delicate topic in China. The leadership has banned publication of data on the subject for fear of inciting social unrest, said scholars involved in the research. But the results of some research provide alarming evidence that the environment has become one of the biggest causes of death.

An internal, unpublicized report by the Chinese Academy of Environmental Planning in 2003 estimated that 300,000 people die each year from ambient air pollution, mostly of heart disease and lung cancer. An additional 110,000 deaths could be attributed to indoor air pollution caused by poorly ventilated coal and wood stoves or toxic fumes from shoddy construction materials, said a person involved in that study.

Another report, prepared in 2005 by Chinese environmental experts, estimated that annual premature deaths attributable to outdoor air pollution were likely to reach 380,000 in 2010 and 550,000 in 2020.

This spring, a World Bank study done with SEPA, the national environmental agency, concluded that outdoor air pollution was already causing 350,000 to 400,000 premature deaths a year. Indoor pollution contributed to the deaths of an additional 300,000 people, while 60,000 died from diarrhea, bladder and stomach cancer and other diseases that can be caused by water-borne pollution.

China’s environmental agency insisted that the health statistics be removed from the published version of the report, citing the possible impact on “social stability,” World Bank officials said.

But other international organizations with access to Chinese data have published similar results. For example, the World Health Organization found that China suffered more deaths from water-related pollutants and fewer from bad air, but agreed with the World Bank that the total death toll had reached 750,000 a year. In comparison, 4,700 people died last year in China’s notoriously unsafe mines, and 89,000 people were killed in road accidents, the highest number of automobile-related deaths in the world. The Ministry of Health estimates that cigarette smoking takes a million Chinese lives each year.

Studies of Chinese environmental health mostly use statistical models developed in the United States and Europe and apply them to China, which has done little long-term research on the matter domestically. The results are more like plausible suppositions than conclusive findings.

But Chinese experts say that, if anything, the Western models probably understate the problems.

“China’s pollution is worse, the density of its population is greater and people do not protect themselves as well,” said Jin Yinlong, the director general of the Institute for Environmental Health and Related Product Safety in Beijing. “So the studies are not definitive. My assumption is that they will turn out to be conservative.”

Growth Run Amok

As gloomy as China’s pollution picture looks today, it is set to get significantly worse, because China has come to rely mainly on energy-intensive heavy industry and urbanization to fuel economic growth. In 2000, a team of economists and energy specialists at the Development Research Center, part of China’s State Council, set out to gauge how much energy China would need over the ensuing 20 years to achieve the leadership’s goal of quadrupling the size of the economy.

They based their projections on China’s experience during the first 20 years of economic reform, from 1980 to 2000. In that period, China relied mainly on light industry and small-scale private enterprise to spur growth. It made big improvements in energy efficiency even as the economy expanded rapidly. Gross domestic product quadrupled, while energy use only doubled.

The team projected that such efficiency gains would probably continue. But the experts also offered what they called a worst-case situation in which the most energy-hungry parts of the economy grew faster and efficiency gains fell short.

That worst-case situation now looks wildly optimistic. Last year, China burned the energy equivalent of 2.7 billion tons of coal, three-quarters of what the experts had said would be the maximum required in 2020. To put it another way, China now seems likely to need as much energy in 2010 as it thought it would need in 2020 under the most pessimistic assumptions.

“No one really knew what was driving the economy, which is why the predictions were so wrong,” said Yang Fuqiang, a former Chinese energy planner who is now the chief China representative of the Energy Foundation, an American group that supports energy-related research. “What I fear is that the trend is now basically irreversible.”

The ravenous appetite for fossil fuels traces partly to an economic stimulus program in 1997. The leadership, worried that China’s economy would fall into a steep recession as its East Asian neighbors had, provided generous state financing and tax incentives to support industrialization on a grand scale.

It worked well, possibly too well. In 1996, China and the United States each accounted for 13 percent of global steel production. By 2005, the United States share had dropped to 8 percent, while China’s share had risen to 35 percent, according to a study by Daniel H. Rosen and Trevor Houser of China Strategic Advisory, a group that analyzes the Chinese economy.

Similarly, China now makes half of the world’s cement and flat glass, and about a third of its aluminum. In 2006, China overtook Japan as the second-largest producer of cars and trucks after the United States.

Its energy needs are compounded because even some of its newest heavy industry plants do not operate as efficiently, or control pollution as effectively, as factories in other parts of the world, a recent World Bank report said.

Chinese steel makers, on average, use one-fifth more energy per ton than the international average. Cement manufacturers need 45 percent more power, and ethylene producers need 70 percent more than producers elsewhere, the World Bank says.

China’s aluminum industry alone consumes as much energy as the country’s commercial sector — all the hotels, restaurants, banks and shopping malls combined, Mr. Rosen and Mr. Houser reported.

Moreover, the boom is not limited to heavy industry. Each year for the past few years, China has built about 7.5 billion square feet of commercial and residential space, more than the combined floor space of all the malls and strip malls in the United States, according to data collected by the United States Energy Information Administration.

Chinese buildings rarely have thermal insulation. They require, on average, twice as much energy to heat and cool as those in similar climates in the United States and Europe, according to the World Bank. The vast majority of new buildings — 95 percent, the bank says — do not meet China’s own codes for energy efficiency.

All these new buildings require China to build power plants, which it has been doing prodigiously. In 2005 alone, China added 66 gigawatts of electricity to its power grid, about as much power as Britain generates in a year. Last year, it added an additional 102 gigawatts, as much as France.

This increase has come almost entirely from small- and medium-size coal-fired power plants that were built quickly and inexpensively. Only a few of them use modern, combined-cycle turbines, which increase efficiency, said Noureddine Berrah, an energy expert at the World Bank. He said Beijing had so far declined to use the most advanced type of combined-cycle turbines despite having completed a successful pilot project nearly a decade ago.

While over the long term, combined-cycle plants save money and reduce pollution, Mr. Berrah said, they cost more and take longer to build. For that reason, he said, central and provincial government officials prefer older technology.

“China is making decisions today that will affect its energy use for the next 30 or 40 years,” he said. “Unfortunately, in some parts of the government the thinking is much more shortsighted.”

The Politics of Pollution

Since Hu Jintao became the Communist Party chief in 2002 and Wen Jiabao became prime minister the next spring, China’s leadership has struck consistent themes. The economy must grow at a more sustainable, less bubbly pace. Environmental abuse has reached intolerable levels. Officials who ignore these principles will be called to account.

Five years later, it seems clear that these senior leaders are either too timid to enforce their orders, or the fast-growth political culture they preside over is too entrenched to heed them.

In the second quarter of this year, the economy expanded at a neck-snapping pace of 11.9 percent, its fastest in a decade. State-driven investment projects, state-backed heavy industry and a thriving export sector led the way. China burned 18 percent more coal than it did the year before.

China’s authoritarian system has repeatedly proved its ability to suppress political threats to Communist Party rule. But its failure to realize its avowed goals of balancing economic growth and environmental protection is a sign that the country’s environmental problems are at least partly systemic, many experts and some government officials say. China cannot go green, in other words, without political change.

In their efforts to free China of its socialist shackles in the 1980s and early 90s, Deng and his supporters gave lower-level officials the leeway, and the obligation, to increase economic growth.

Local party bosses gained broad powers over state bank lending, taxes, regulation and land use. In return, the party leadership graded them, first and foremost, on how much they expanded the economy in their domains.

To judge by its original goals — stimulating the economy, creating jobs and keeping the Communist Party in power — the system Deng put in place has few equals. But his approach eroded Beijing’s ability to fine-tune the economy. Today, a culture of collusion between government and business has made all but the most pro-growth government policies hard to enforce.

“The main reason behind the continued deterioration of the environment is a mistaken view of what counts as political achievement,” said Pan Yue, the deputy minister of the State Environmental Protection Administration. “The crazy expansion of high-polluting, high-energy industries has spawned special interests. Protected by local governments, some businesses treat the natural resources that belong to all the people as their own private property.”

Mr. Hu has tried to change the system. In an internal address in 2004, he endorsed “comprehensive environmental and economic accounting” — otherwise known as “Green G.D.P.” He said the “pioneering endeavor” would produce a new performance test for government and party officials that better reflected the leadership’s environmental priorities.

The Green G.D.P. team sought to calculate the yearly damage to the environment and human health in each province. Their first report, released last year, estimated that pollution in 2004 cost just over 3 percent of the gross domestic product, meaning that the pollution-adjusted growth rate that year would drop to about 7 percent from 10 percent. Officials said at the time that their formula used low estimates of environmental damage to health and did not assess the impact on China’s ecology. They would produce a more decisive formula, they said, the next year.

That did not happen. Mr. Hu’s plan died amid intense squabbling, people involved in the effort said. The Green G.D.P. group’s second report, originally scheduled for release in March, never materialized.

The official explanation was that the science behind the green index was immature. Wang Jinnan, the leading academic researcher on the Green G.D.P. team, said provincial leaders killed the project. “Officials do not like to be lined up and told how they are not meeting the leadership’s goals,” he said. “They found it difficult to accept this.”

Conflicting Pressures

Despite the demise of Green G.D.P., party leaders insist that they intend to restrain runaway energy use and emissions. The government last year mandated that the country use 20 percent less energy to achieve the same level of economic activity in 2010 compared with 2005. It also required that total emissions of mercury, sulfur dioxide and other pollutants decline by 10 percent in the same period.

The program is a domestic imperative. But it has also become China’s main response to growing international pressure to combat global warming. Chinese leaders reject mandatory emissions caps, but they claim that the energy efficiency plan will slow growth in carbon dioxide emissions.

Even with the heavy pressure, though, the efficiency goals have been hard to achieve. In the first full year since the targets were set, emissions increased. Energy use for every dollar of economic output fell but by much less than the 4 percent interim goal.

In a public relations sense, the party’s commitment to conservation seems steadfast. Mr. Hu shunned his usual coat and tie at a meeting of the Central Committee this summer. State news media said the temperature in the Great Hall of the People was set at a balmy 79 degrees Fahrenheit to save energy, and officials have encouraged others to set thermostats at the same level.

By other measures, though, the leadership has moved slowly to address environmental and energy concerns.

The government rarely uses market-oriented incentives to reduce pollution. Officials have rejected proposals to introduce surcharges on electricity and coal to reflect the true cost to the environment. The state still controls the price of fuel oil, including gasoline, subsidizing the cost of driving.

Energy and environmental officials have little influence in the bureaucracy. The environmental agency still has only about 200 full-time employees, compared with 18,000 at the Environmental Protection Agency in the United States.

China has no Energy Ministry. The Energy Bureau of the National Development and Reform Commission, the country’s central planning agency, has 100 full-time staff members. The Energy Department of the United States has 110,000 employees.

China does have an army of amateur regulators. Environmentalists expose pollution and press local government officials to enforce environmental laws. But private individuals and nongovernment organizations cannot cross the line between advocacy and political agitation without risking arrest.

At least two leading environmental organizers have been prosecuted in recent weeks, and several others have received sharp warnings to tone down their criticism of local officials. One reason the authorities have cited: the need for social stability before the 2008 Olympics, once viewed as an opportunity for China to improve the environment.

Posted by M at 01:50:58 | Permalink | No Comments »

Monday, August 20, 2007

Trying to Be Green, With Very Little Water

Yannis Kolesidis for The New York Times

POTENTIAL PLAYGROUND An arid region of Crete that is the proposed site of the Cavo Sidero resort development.

By JOANNA KAKISSIS Published: August 19, 2007

ONE of the Mediterranean’s prized stretches of virgin coast lies on the eastern tip of the Greek island of Crete — more than 6,000 acres of land on a craggy peninsula dotted with scrubby bouquets of thyme and sage. If all goes as planned, a group of international investors will turn that land into Cavo Sidero, which is already being promoted as the largest eco-friendly luxury tourism development in southeastern Europe.

On paper, Cavo Sidero looks like the ideal confluence of traditional elegance and environmental respect. A brochure shows watercolors of whitewashed village homes and photographs of starfish, birds and a father and his young son surf fishing. Local environmentalists, however, say water-starved Crete cannot support this $1.6 billion year-round resort, which would include hotels, vacation homes and golf courses.

The debate over the project reflects a concern throughout the Mediterranean, which is now facing drought and scorching heat waves: can a resort built on fragile land be ecologically sound?

“In the Mediterranean, where there’s still a dynamic tourism industry, sustainability is crucial,” said Gabor Vereczi, environmental quality chief in the sustainable development department of the United Nations World Tourism Organization, based in Madrid. “Unfortunately, there are many developments going up in very arid areas. If they want to survive, it’s just good business sense to make sure all environmental safeguards are followed rigorously.”

Indeed, signs of an environmental crisis are everywhere in the region. Parts of Greece, Cyprus, Italy, Portugal, Spain and Turkey are facing desertification, or the degradation of once-fertile soil, because of overbuilding, overgrazing, poor water resource management and an explosion in hothouse agriculture.

Many hoteliers and developers say they have already adopted greener practices. For instance, the Vila Sol Spa and Golf Resort in the Algarve region of Portugal and the Amathus Beach Hotel in Limassol, Cyprus, are touting their water management operations, while the Grecotel chain in Greece is experimenting with water-efficient organic farming in raising food for its hotels. Key Resorts, which operates the Mosa Trajectum resort near the southern city of Murcia in Spain, is promoting “100 percent ecological golfing”; its courses are built on biodegradable foam that is said to reduce water evaporation.

Dolphin Capital Partners, an Athens-based private equity firm specializing in real estate developments in southeast Europe, is working with resorts in Greece, Cyprus and Croatia that will have on-site desalination and wastewater treatment plants and use native plants for landscaping. One Dolphin project, Sitia Bay, is set to go up near the Cavo Sidero site.

“If you are somewhere with water problems, like eastern Crete, you cannot make the area all green, as if you’re recreating Norway,” said Spyros Tzoannos, Dolphin’s asset management director. “You have got to work with the natural environment.”

The Minoan Group, the developers who are planning Cavo Sidero, spent about 2 million euros on an environmental study and also pledged to build desalination and wastewater treatment plants. They say their golf courses will be filled with seashore paspalum, a salt-tolerant grass, and with local flora instead of grasses that require a lot of water. The developers have also partnered with a British-based environmental organization, Forum for the Future, and plan to educate vacationers and homeowners at Cavo Sidero on responsible water use.

“The last thing we want is for people to come here and drive through a desert,” said Christopher Egleton, president of the Minoan Group.

The Greek government strongly supports the project, which includes six villages with traditional homes, villas and apartments as well as hotels, sports facilities, restaurants and shops on about 1 percent of the site. The rest will be set aside for trails, nature areas and three golf courses. When the developers presented their plans earlier this year, the Greek tourism minister, Fani Palli-Petralia, said it would be “one of the greatest projects ever carried out in Greece.”

The Cavo Sidero land belongs to Toplou, a wealthy monastery that owns much of the land in eastern Crete, where it grazes goats and cultivates olives. Philotheos, the monastery’s abbot, has long wanted to invigorate the local economy with more tourism. In 1994, a foundation of which the abbot was a founder agreed to lease the tract, more than 6,000 acres, to the Minoan Group (then called Loyalward Ltd.) for 40 years with an option for 40 more years, in exchange for 10 percent of the gross annual revenue.

But many environmentalists and residents do not want the project. “We don’t want to be in the position of running out of water because it’s being pumped to the tourists there,” said Manolis Tsantakis, an Itanos council member who voted against Cavo Sidero.

Scientists say Greece’s water reserves could dwindle by a quarter by 2030 because of rising temperatures and a decrease in rainfall. The situation is especially sensitive in Crete, which faces chronic droughts and where half of the island is at risk of desertification.

Mr. Tsantakis and other critics of the project would rather see the site used for a public cultural park or not developed at all. They have taken their appeal to Greece’s highest court, which is set to hear the case late this fall.

Mr. Vereczi of the United Nations tourism organization says assessing the ecological viability of luxury developments can be difficult because it’s hard to define exactly what “eco” means in this context.

For many ecotourism devotees, “luxury is the opposite of eco,” said Antonis Petropoulos, director of the Athens-based Ecoclub, an international network of affordable lodges that focus on nature. In Spain, for instance, Ecoclub’s sole member is Mas Lluerna Eco Farm in Catalonia, where visitors live on an organic farm and surrounding wetlands and cook on solar-powered ovens.

Those looking for affordable ecotourism accommodations in the Mediterranean can check with groups such as Sustainable Travel International in Boulder, Colo., and the British-based Responsible Travel, which screen their member hotels for ecological responsibility. The European Union also awards “eco-labels” to accommodations that meet several guidelines, including limiting water usage and waste production. But the eco-label has gone to only a handful of operators, including Sunwing resorts in Greece, Cyprus and Spain.

“Part of the problem is that sustainability is a difficult thing to measure,” said Brian Mullis, president of Sustainable Travel International, which is working with Leading Hotels of the World to draft eco-certification guidelines for that organization’s 440 member hotels. That will take at least a year, said Kristin Glass, marketing director for Leading Hotels of the World.

Meanwhile, the Rome-based Luxury Camps and Lodges of the World offers an international directory of 89 small-scale “eco-luxury” options. Enrico Ducrot, the organization’s president, says he hopes more leisure resort developers in the Mediterranean get serious about sustainability.

“Unless a new model of sustainability is adopted,” Mr. Ducrot said, “it is hard to know who is just talking and who is the real thing.”

Posted by M at 01:52:34 | Permalink | No Comments »

Friday, August 17, 2007

In Florida, lukewarm welcome for drought-resistant landscaping

The lawn-free look conserves water, but takes some getting used to for those accustomed to manicured grass.
| Correspondent of The Christian Science Monitor
from the August 17, 2007 edition - http://www.csmonitor.com/2007/0817/p03s01-ussc.html
Green thumb: Barbara Tubbs’ pine needles are not green like her neighbors’ grass, but they fit with her green attitude about the environment.

Barbara Tubb’s entire yard is a garden of colorful plants and flowers. Palmetto. Pungent-smelling blue basil. And her favorite: bright white cat whiskers. Buttressed by pine needles, the yard looks to one neighbor like a fire hazard.

 

Inspired by environmentalism, rising water bills, and her husband’s support before he died, Ms. Tubbs hired a landscape architect to design her new drought-resistant yard. The homeowner’s association in the country club where she lives – a community of manufactured homes in suburban Orlando – resisted her save-water-and-the-planet attitude but eventually granted permission for her to tear out all her St. Augustine grass. Immediately, there was backlash from her neighbors; one even called the fire department.

In Florida, there seems to be little awareness of water as a limited resource, and why should there be? The state is mostly a lush, tropical landscape with lakes, rivers, and springs. Surrounded by ocean water, it gets pounded by hurricanes and tropical storms that, with other rainfall, dump up to 50 inches annually.

But some warn Florida’s groundwater is nearing its limits. And people like Tubbs who uproot lush sod for less thirsty landscaping often don’t get much support from their neighbors.

This summer’s drought – the worst in the Southeast since record-keeping began in 1895 – has laid bare parts of Lake Okeechobee, the second-largest freshwater lake in the continental US behind Lake Michigan. It has also exposed permanent water problems in the eastern part of the nation, says Cynthia Barnett, a longtime Florida journalist and author of “Mirage: Florida and the Vanishing Water of the Eastern U.S.”

She and others warn that the state may soon face water wars once unique to the arid West, a situation that eventually could reach well beyond Florida as populations grow across the eastern United States and climate changes affect water availability.

“Florida will never be arid like Arizona, but it’s certainly going to have the same water problems as Arizona has,” says Peter Gleick, president of the Pacific Institute, an independent nonprofit research group based in Oakland, Calif. “Florida is reaching the limits of its natural water availability. The population is growing rapidly, and it’s outstripping the natural endowment.”

The average Floridian household consumes 174 gallons of water daily, using up to 75 percent of it to irrigate sod and landscaping. The sod of choice is St. Augustine – grass that dies without water. In this state of golf courses and country clubs, many homeowner’s associations require that a certain percentage of a homeowner’s yard is sod with St. Augustine, maintained to a specific shade of green, Ms. Barnett says.

Xeriscaping – landscaping using drought-resistant and usually native plants and flowers – is catching on thanks to trailblazers like Tubbs. But it’s still not mainstream in Florida. Proponents avoid using the term, because they say it’s misconstrued as zero landscaping or landscaping with rocks and gravel.

Striking a balance between attractive, drought-resistant landscaping and landscaping that is unkempt is tricky, says Teresa Watkins, Central Florida yards and neighborhoods coordinator for the University of Florida. A dirt yard saves water, but it sure isn’t pretty.

Very few Florida yards – perhaps fewer than 1 percent – are “Florida-friendly,” says Ms. Watkins.

“We still see lawns everywhere,” says Mr. Gleick. “It doesn’t matter if you think you’re in a state that gets a lot of water if you use it all.”

In 2005, the Florida Legislature passed two laws, one requiring local governments to ensure water sources are available before approving new development and another allocating $60 million to localities to develop new water sources. Gleick warns that any real progress will have to come from local governments, because local agencies distribute water.

That’s starting to happen in Florida. In Sarasota, the average household has reduced its number of gallons used daily to 90 through measures that limit the amount of sod allowed in a yard. Some residents, conscious of shortages, have asked for restrictions on water use to go even further, says Pat Haire, a Sarasota County spokeswoman.

Other municipalities are exploring ways to remove salt from sea water. In Orange County, home to Orlando, water managers are pushing for an attitude shift – starting with children, says Jacqueline Torbert of the Orange County Utilities’ Water Division. They are visiting schools and promoting conservation on Radio Disney in programs broadcast throughout Central Florida. And they’re encouraging home builders and homeowner’s associations to landscape with less St. Augustine grass. Orange County is also developing water and landscaping ordinances.

Most golf courses in the Orlando area already use reclaimed water or reused waste water. And only about half of an average household’s water is used outside, Ms. Torbert says. Though the issue gained urgency for the agency only about five years ago, time is of the essence: The agency expects the region’s groundwater to reach a critical level by 2013.

Florida is unique because it is so dependent on its groundwater, says Gleick, but other parts of the country also over-pump their aquifers. He cites the Ogallala aquifer that spans Nebraska, Oklahoma, Texas, and Kansas as one example.

Nationwide it’s hard to know how much water landscaping like Tubbs’s saves. Landscaping in different regions requires vastly different amounts of water. But Tubbs sees a difference in her water bill – down $10 to $20 a month since her new yard went in.

“I’m willing to be the first one,” she says. “I can handle [the neighbors.]“

Posted by M at 22:06:03 | Permalink | No Comments »

Wednesday, August 15, 2007

On US border, a surge in tidal-power projects

More than a dozen developers are preparing prototypes to be tested in the Bay of Fundy, said to have the world’s highest tides and North America’s best tidal-power spots.
| Correspondent of The Christian Science Monitor
from the August 15, 2007 edition - http://www.csmonitor.com/2007/0815/p06s02-woam.html

Tides are a fact of life on the Bay of Fundy, and here more than most places. Strong enough to carry a small sailboat backward, they flow around this island in reversible rivers. Currents smash together in a violent chop or conspire to create whirlpools – including the hemisphere’s largest.

People have long dreamed of harnessing these tides, including Franklin D. Roosevelt, who wanted to build dams from Deer Island to the Maine and New Brunswick mainland as part of an aborted Depression-era energy scheme. Until recently, the environmental and monetary costs of tidal dams nixed most efforts.

But with high energy prices and increased demand for renewable energy, tidal power is taking the stage again. It’s greener this time, with new technologies that promise to generate clean, predictable power without dams or negative environmental consequences.

 

More than a dozen developers have been working on this so-called “in-stream” technology inspired by wind turbines. Most of their prototypes incorporate turbines attached to the seafloor, where tidal currents spin them safely beneath the shipping lanes and, hopefully, without troubling marine life. Almost all require further field-testing before they’re ready for large-scale deployment.

“The technology is still in its infancy, with people trying out a lot of different technologies to pick the winners,” says Margaret Murphy of Nova Scotia Power, which has partnered with an Irish company to test turbines at Minas Passage, a narrow waterway flowing into Minas Channel near the head of the Bay of Fundy, where tides reach 50 feet. “We feel if it’s going to happen, it should happen here and it should happen now.”

Spurred by a survey

Last year a North American survey of potential tidal energy sites by the Electric Power Research Institute in Palo Alto, Calif., found that most of the best potential sites were in the Bay of Fundy, including Nova Scotia’s Minas Passage and the three passages that surround Deer Island, including one that forms the boundary with Maine.

Put together, the three Deer Island sites could produce an estimated 29 megawatts of electricity (enough to power 20,000 homes) by capturing 15 percent of the tide’s energy – EPRI’s rough estimate of how much could be safely withdrawn without disrupting the environment. The Minas Passage site might produce as much as 152 megawatts, powering 117,000 homes.

The study has triggered an explosion in interest that has surprised even its author. Nova Scotia and New Brunswick promptly launched a detailed site evaluation process, while three companies have secured permits to test their technologies on the Maine side of Passamaquoddy Bay, which opens onto the Bay of Fundy.

“I was shocked at the speed of the response,” says EPRI analyst Roger Bedard. “There’s a confluence of forces that are coming together right now that are making private investors believe renewables are about to really take off.”

Concerns about the environmental, economic, and strategic costs of relying on fossil fuels have been on the rise, prompting many states and provinces to adopt renewable energy quotas. Experts say that over the past decade, wind power has been proven commercially reliable, but other alternatives are needed. “Everybody’s interested in renewable energies because we all realize we’re going to need them,” says Darwin Curtis of the New Brunswick department of energy. “We think tidal energy is very promising.”

Key advantage: predictable energy

Tidal power has a big advantage over wind or solar: You always know how much is going to be available, and when.

“The dispatchers who run the grids, who have to match supply and demand at all times, can perfectly predict what they’ll be getting from the position of the sun and the moon,” notes Mr. Bedard. And because water is more than 800 times as dense as air, he adds, the same amount of power can be created with a much smaller turbine than a wind farm would need. Most designs are hidden deep underwater and thus out of sight.

Once the prototypes start hitting the water – in Eastport, Maine, this November and Minas Basin in 2009 – there will be plenty of challenges to overcome. The Bay of Fundy’s frigid, powerful currents will test any machine submerged in it, just as scientists and regulators will be taking a careful look at how currents and sea life are affected by the machines.

OpenHydro, the Irish company behind the proposed Minas Basin project, has the rights to a turbine design that has undergone tests in Scotland’s Orkney islands as a 0.3-megawatt prototype. A Norwegian firm, Hammerfest Strom, intends to install a full-scale 1-megawatt device in Scotland in 2009.

“We don’t expect to have any effect at all on the currents or marine life, but we won’t know for sure until we test it,” says Chris Sauer of Ocean Renewable Power Co., which will begin testing a small prototype in the passage between Eastport and Deer Island this fall. “Before we go to full deployment, we’ll have all those answers.”

Another unknown: how much tidal energy can be captured without altering the flow and, therefore, the marine environment. “One would think one turbine would have a very minimal impact, but how about 200 or 400?” asks Lesley Griffiths of Halifax, Nova Scotia, who is heading up the ongoing strategic environmental assessment of potential sites in Nova Scotia and New Brunswick. “At what point will it start affecting how and where sediments are carried and how tides are experienced in harbors?”

Posted by M at 22:11:04 | Permalink | No Comments »

Angkor was a city ahead of its time

The technology for harvesting water that enabled the Khmer to thrive also led to their fall, researchers say.
By Thomas H. Maugh II, Los Angeles Times Staff Writer
August 14, 2007


Outside the Angkor Wat templeKhmer metropolis

The ancient Khmer city of Angkor in Cambodia was the largest preindustrial metropolis in the world, with a population near 1 million and an urban sprawl that stretched over an area similar to modern-day Los Angeles, researchers reported Monday.

The city’s spread over an area of more than 115 square miles was made possible by a sophisticated technology for managing and harvesting water for use during the dry season — including diverting a major river through the heart of the city.

But that reliance on water led to the city’s collapse in the 1500s as overpopulation and deforestation filled the canals with sediment, overwhelming the city’s ability to maintain the system, according to the report in the Proceedings of the National Academy of Sciences.


The hydraulic system became “not manageable, no matter how many resources were thrown at it,” said archeologist Damian Evans of the University of Sydney in Australia, the lead author of the paper.

But during the six centuries that the city thrived, it was unparalleled, particularly because it was one of the very few civilizations that sprang up in a tropical setting, said archeologist Vernon L. Scarborough of the University of Cincinnati, who was not involved in the research.

Just one section of the city, called West Baray, was many times “larger than the entire 9-square-kilometer hillock on which sat Tikal, the largest city in Central America,” he said.

“The scale is truly unparalleled,” added archeologist William A. Saturno of Boston University, who also was not involved.

“Forest environments are not good ones for civilizations . . . because they require intensively manipulating the environment,” he said. “Angkor is the epitome of this, and it is going to be the model for how tropical civilizations are interpreted.”

Old and new technologies

The new data come from an unusual agglomeration of both old and new technologies. The core data came from a synthetic aperture radar unit flown on the space shuttle in 2000 and managed by NASA’s Jet Propulsion Laboratory in La Cañada Flintridge.

The radar pierced low-lying clouds and vegetation to give an accurate picture of soil density, local structures and moisture in soil, which reflects growing conditions.

The images revealed, for example, the characteristic moat-enclosed local temples and artificial ponds used for water storage and irrigation.

This information was supplemented with photographs taken from ultralight aircraft flown over the city at low speeds and altitudes.

Finally, the researchers used motor scooters to traverse the city and closely examine sites revealed on the radar images. But so many sites have been revealed, Evans said, that the researchers are only partway through this process.

The group, collectively called the Greater Angkor Project, released a partial map three years ago. The new one released Monday contains, among other things, an additional 386 square miles of urban area, at least 74 long-lost temples and more than 1,000 newly recognized artificial ponds.

Angkor was the capital of the Khmer Empire, which got its start in AD 802 when the god-king Jayavarman II declared the region’s independence from Java. At its height, the empire covered not only Cambodia but also parts of modern-day Laos, Thailand and Vietnam.

It is perhaps best known for Angkor Wat, the magnificent temple built by King Suryavarman II in the early 12th century.

Angkor has been studied for more than a century, but early scholars were so overwhelmed by the artworks and architecture, as well as the political successions, that they ignored the archeology, said coauthor Roland Fletcher of the University of Sydney.

In the late 1960s, French archeologist Bernard-Philippe Groslier began a more formal study of the ruins, but that work was halted for more than 20 years by the war that broke out in 1970.

After the war, archeologist Christophe Pottier of the Ecole Francaise d’Extreme-Orient in Siem Reap, another coauthor, renewed the work, beginning what eventually grew into the current project.

Disputes over history

In the process, the researchers have begun solving many of the disputes that have arisen over the city’s history, Evans said.

“The debate has always been . . . was it large enough, was the manipulation of the landscape intensive enough to cause environmental problems?” Evans said. “The answer is definitively yes.”

Other arguments have been based on the assumption that Khmer hydraulic engineering technology was rather rudimentary, he said. “What our research has shown is that it was extremely sophisticated and highly complex,” he said.

Many of the reservoirs and walls of canals were constructed of compacted earth, he said, but junctions and other crucial points in the system were “quite sophisticated stone structures.”

The Khmer built, for example, a massive stone structure to divert the Siem Reap River from its old bed through the center of the city. Other sites have stone structures built into the walls to manage the inflow and outflow of water, he said.

The system was complex enough that the Khmer could have grown rice throughout the year and not just during the rainy season, Evans said. It is not yet clear if they did so, however.

“The intentional movement of earth to create the whole water system is just really mind-boggling,” Saturno said. “It was an enormous undertaking” that required not just administrative skills, but also engineering know-how and massive amounts of physical labor.

But in the end, maintenance became too labor-intensive, Evans said. As trees were removed from the landscape, sediment began accumulating in the canals at a rate more rapid than it could be removed. Many dike walls collapsed, although it is not yet known when that occurred.

“We’re going now and excavating [the sites] on the ground, and trying to get a grip on when they happened — whether they were a precursor of the decline, a symptom or the system gradually falling into ruin after they left,” he said.

Posted by M at 05:22:11 | Permalink | No Comments »