10 posts tagged “environment”

By H. JOSEF HEBERT
28 Apr 2008

WASHINGTON (AP) — The Bush administration is undermining the Environmental Protection Agency's ability to determine health dangers of toxic chemicals by letting nonscientists have a bigger — often secret — say, congressional investigators say in a report obtained by The Associated Press.

The administration's decision to give the Defense Department and other agencies an early role in the process adds to years of delay in acting on harmful chemicals and jeopardizes the program's credibility, the Government Accountability Office concluded.

At issue is the EPA's screening of chemicals used in everything from household products to rocket fuel to determine if they pose serious risk of cancer or other illnesses.

A new review process begun by the White House in 2004 is adding more speed bumps for EPA scientists, the GAO said in its report, which will be the subject of a Senate Environment Committee hearing Tuesday. A formal policy effectively doubling the number of steps was adopted two weeks ago.

Cancer risk assessments for nearly a dozen major chemicals are now years overdue, the GAO said, blaming the new multiagency reviews for some of the delay. The EPA, for example, had promised to prepare assessments on 10 major toxic chemicals for external peer review by the end of 2007, but only two reached that stage.

GAO investigators said extensive involvement by EPA managers, White House budget officials and other agencies has eroded the independence of EPA scientists charged with determining the health risks posed by chemicals.

The Pentagon, the Energy Department, NASA and other agencies — all of which could be severely affected by EPA risk findings — are being allowed to participate "at almost every step in the assessment process," said the GAO.

Those agencies, their private contractors and manufacturers of the chemicals face restrictions and major cleanup requirements, depending on the EPA's scientific determinations.

"By law the EPA must protect our families from dangerous chemicals," said Sen. Barbara Boxer, D-Calif., the Senate committee's chairman. "Instead, they're protecting the chemical companies."

The EPA's risk assessment process "never was perfect," Boxer said in an interview Monday. "But at least it put the scientists up front. Now the scientists are being shunted aside."

The GAO said many of the deliberations over risks posed by specific chemicals "occur in what amounts to a black box" of secrecy because the White House claims they are private executive branch deliberations.

Such secrecy "reduces the credibility of the ... assessments and hinders the EPA's ability to manage them," the GAO report said.

The White House said the GAO is wrong in suggesting that the EPA has lost control in assessing the health risks posed by toxic chemicals.

"Only EPA has the authority to finalize an EPA assessment," Kevin F. Neyland, deputy administrator of the White House budget office's Office of Information and Regulatory Affairs, wrote in response to the GAO. He called the interagency process "a dialogue that helps to ensure the quality" of the reviews.

One EPA scientist with extensive knowledge of the changes in the agency's risk assessment policies ridiculed the claim that the EPA still has the final say.

"Unless there is concurrence by other agencies, ... things don't go forward. It means we stop what we are doing," said the scientist, speaking on condition of anonymity because of fear of endangering his career.

"The (EPA) scientists feel as if they have lost complete control of the process, that it's been taken over by the White House and that they're calling the shots," the scientist said.

The GAO investigation focused on the EPA's computerized database, known as IRIS — the Integrated Risk Information System. It contains data on the human health effects of exposure to some 540 toxic chemicals in the environment. New chemicals are being proposed constantly for inclusion under a complicated assessment process that can take five years or more.

After years of stops and starts, the GAO said, the EPA has yet to determine carcinogen risks for a number of major chemicals such as:

- Naphthalene, a chemical used in rocket fuel as well as in manufacturing commercial products such as mothballs, dyes and insecticides.

- Trichloroethylene, or TCE, a widely used industrial degreasing agent.

- Perchloroethylene, or "perc," a chemical used in dry cleaning, metal degreasing and making chemical products.

- Formaldehyde, a colorless, flammable gas used to making building materials.

Environmentalists say these chemicals have been widely found at military bases and Superfund sites and in soil, lakes, streams and groundwater.

The findings, after an 18-month investigation by the congressional watchdog agency, come at a time of growing criticism from members of Congress and health and environmental advocates over alleged political interference in the government's science activities.

Last week, a confidential survey by an advocacy group of EPA scientists showed more than half of the 1,600 respondents worried about political pressure in their work. 

By MATTHEW L. WALD
The New York Times
Published: May 2, 2008

WASHINGTON — For the first time in 30 years, the Environmental Protection Agency has proposed a new limit for lead concentrations in the air.

The agency is under court order to complete a new rule by Sept. 1, because of a lawsuit brought by environmentalists.

Air, however, is no longer the most common source of major exposure to lead, which can cause I.Q. loss, kidney damage and other serious health problems. In most places, water and lead paint are more troublesome sources.

Lead emissions in the air have dropped by more than 97 percent in the last three decades, because the United States banned lead as an additive in gasoline. That step was taken to allow cars to have catalytic converters, which cut the ingredients of smog, and reduced lead in the air as a side benefit.

Still, high lead concentrations exist in scattered places with iron and steel foundries, copper smelters, mining operations, waste incinerators and concrete plants, according to Lydia Wegman, an expert at the Office of Air Quality Planning and Standards. In addition, she said, gasoline with lead is still used in small airplanes.

Depending on the level at which the new standard is set, officials can identify two dozen counties that would be out of compliance. But they cannot be certain how many other counties may fail because the network of monitoring stations has been cut back.

Two counties, Jefferson in Missouri and Delaware in Indiana, still violate the old standard, which is 1.5 micrograms per cubic meter of air.

On Thursday, the E.P.A. proposed a standard between 0.1 and 0.3 micrograms per cubic meter, or one-5th to one-15th of the old level.

Robert J. Meyers, the assistant administrator for air and radiation, said the standard was reviewed in the early 1990s but not revised. Late last year, the E.P.A. raised the idea of eliminating the standard entirely.

A lawyer at the Natural Resources Defense Council, Avinash Kar, said his group was pleased that the agency had dropped the effort to abandon the standard. But he said the higher end of the proposed range, 0.3 micrograms, was above the level unanimously recommended by the agency’s panel of outside scientific advisers.

“It’s generally a step in the right direction, but still flawed,” Mr. Kar said.

Senator Barbara Boxer, the California Democrat who is chairwoman of the Committee on Environment and Public Works, said the proposed standard was not strict enough to protect children. “Once again, the Bush administration has failed to heed its scientists,” Mrs. Boxer said.

Massachusetts Family Demands Answers From Town, Builder
April 23, 2008

MANCHESTER-BY-THE-SEA, Mass. -- A Massachusetts homeowner said she cannot live or sell her new $850,000 home because it may have been built on an old dump.

Julie Gesner and her family did not know about the land's history until they tried to sell the Manchester-By-The-Sea home last year and potential buyers walked away just before making an offer on the property.

"They walked away the day that they were going to put in the offer, saying, 'We heard a rumor that your house was built on the old town dump,'" Julie Gesner said. "I was horrified."

That is when the Gesners had the soil tested.

"The lead, at least, is six times the prescribed limit from the (Department of Environmental Protection) for pregnancy and children. There are other things out in the yard -- mercury and arsenic, chromium," Gesner said.

Two weeks away from having a baby, the family immediately moved out.

They began investigating the property and found a letter from November 2000 from the Board of Health to the builder, ordering him to cease and desist construction of the home. There was no follow-up.

"Do we think there was something there? I think it was probably there, but I can't prove what it was," town administrator Wayne Melville said. "So, it is a big step to shut down a project. You are going to cost people money."

Melville said he was unaware of the Board of Health letter until Tuesday. He maintains there is no hard evidence that the land was a dump or landfill.  

"The town, obviously, should have let us know what was going on -- and the builder and the broker. The broker that sold us the house actually said he had heard rumors that the house was built on the dump," Gesner said.

The Department of Environmental Protection has ordered the town to explain how it will clean up the site unless it can prove it is not responsible.

melville and the builder should have to clean up that place themselves before starting their new jobs bussing tables down the local.

By NEELA BANERJEE
The New York Times
Published: March 10, 2008

Signaling a significant departure from the Southern Baptist Convention’s official stance on global warming, 44 Southern Baptist leaders have decided to back a declaration calling for more action on climate change, saying its previous position on the issue was “too timid.”

The largest denomination in the United States after the Roman Catholic Church, the Southern Baptist Convention, with more than 16 million members, is politically and theologically conservative.

Yet its current president, the Rev. Frank Page, signed the initiative, “A Southern Baptist Declaration on the Environment and Climate Change.” Two past presidents of the convention, the Rev. Jack Graham and the Rev. James Merritt, also signed.

“We believe our current denominational engagement with these issues has often been too timid, failing to produce a unified moral voice,” the church leaders wrote in their new declaration.

A 2007 resolution passed by the convention hewed to a more skeptical view of global warming.

In contrast, the new declaration, which will be released Monday, states, “Our cautious response to these issues in the face of mounting evidence may be seen by the world as uncaring, reckless and ill-informed.”

The document also urges ministers to preach more about the environment and for all Baptists to keep an open mind about considering environmental policy.

Jonathan Merritt, the spokesman for the Southern Baptist Environment and Climate Initiative and a seminarian at Southeastern Baptist Theological Seminary in Wake Forest, N.C., said the declaration was a call to Christians to return to a biblical mandate to guard the world God created.

The Southern Baptist signatories join a growing community of evangelicals pushing for more action among believers, industry and politicians. Experts on the Southern Baptist Convention noted the initiative marked the growing influence of younger leaders on the discussions in the Southern Baptist Convention.

While those younger Baptists remain committed to fight abortion, for instance, the environment is now a top priority, too.

“In no way do we intend to back away from sanctity of life,” said the Rev. Dr. Timothy George, dean of Beeson Divinity School in Birmingham, Ala.

Still, many powerful Southern Baptist leaders and agencies did not sign the declaration, including the convention’s influential political arm, the Ethics and Religious Liberty Commission.

Dr. Barrett Duke, vice president for public policy at the commission, played down the differences between the declaration and the Southern Baptist Convention’s position.

The declaration says in fact that lack of scientific unanimity should not preclude “prudent action,” which includes changing individual habits and giving “serious consideration to responsible policies that effectively address” global warming.

The declaration is the outgrowth of soul-searching by Mr. Merritt, 25. The younger Mr. Merritt said that for years he had been “an enemy of the environment.” Then, he said, he had an epiphany.

“I learned that God reveals himself through Scripture and in general through his creation, and when we destroy God’s creation, it’s similar to ripping pages from the Bible,” Mr. Merritt said.

They're just afraid it's gonna get even hotter down there in the biblee-belt.  Their Summers are already hotter than, well, you know what I mean.

Sunday, March 2, 2008

MUNISING, Mich. (AP) -- A proposal to designate part of the Pictured Rocks National Lakeshore as wilderness is moving forward.

The Mining Journal of Marquette reports the National Park Service is working to finalize the establishment of the Beaver Basin Wilderness Area. The designation would give about 11,739 acres wilderness protections.

A formal proposal has been forwarded to the Legislative Council of the Department of the Interior.

There's no specific timetable for action on the proposal.

The lakeshore extends along Lake Superior between Grand Marais and Munising. It is renowned for a dozen-mile stretch of multicolored sandstone cliffs, some up to 200 feet high, and sand dunes towering even higher.

February 24, 2008

LONDON (AP) -- Virgin Atlantic carried out the world's first flight of a commercial aircraft powered with biofuel on Sunday in an effort to show it can produce less carbon dioxide than normal jet fuels.

Some analysts praised the jumbo jet test flight from London to Amsterdam as a potentially useful experiment. But others criticized it as a publicity stunt and noted scientists are questioning the environmental benefits of biofuels.  

"This breakthrough will help Virgin Atlantic to fly its planes using clean fuel sooner than expected," Sir Richard Branson, the airline's president, said before the Boeing 747 flew from London's Heathrow Airport to Amsterdam's Schiphol Airport.

He said the flight would provide "crucial knowledge that we can use to dramatically reduce our carbon footprint," he said.

Sunday's flight was partially fueled with a biofuel mixture of coconut and babassu oil in one of its four main fuel tanks. The jet carried pilots and several technicians, but no passengers.

Virgin Atlantic spokesman Paul Charles predicted this biofuel would produce much less CO2 than regular jet fuel, but said it will take weeks to analyze the data from Sunday's flight.

"It's great that somebody like Richard is willing to put some of his billions into an experiment aimed at reducing the climate change impact of aviation," said James Halstead, an airline analyst at the London stockbroker Dawnay Day Lochart.

"But there are a lot of unanswered questions about the usefulness of biofuels in the battle against global warming," he said.

The flight is the latest example of how the world's airlines are jumping on the environmental bandwagon by trying to find ways of reducing aviation's carbon footprint.

These efforts have included finding alternative jet fuels, developing engines that burn existing fuels more slowly, and changing the way planes land.

The experiment by Virgin Atlantic and its partners - Boeing, General Electric and Imperium Renewables - also comes at a time when high oil prices and the U.S. economic slowdown are promoting consolidation in the airline industry.

Aircraft engines cause noise pollution and emit gases and particulates that reduce air quality and contribute to global warming and global dimming, where dust and ash from natural and industrial sources block the sun to create a cooling effect.

About a year ago, the European Commission, the executive of the European Union, said greenhouse gas emissions from aviation account for about 3 percent of the total in the EU and have increased by 87 percent since 1990 as air travel cheapened.

Charles said Virgin's Boeing 747-400 jet and its engines did not have to be redesigned to use biofuel on the test flight.

He said CO2 emissions on a normal flight are generally three times the fuel burned, and that technical engineers on the test flight would take readings and analyze data to estimate its greenhouse gas emissions. 

New York Times
By ELISABETH ROSENTHAL
Published: February 2, 2008

DUBLIN — There is something missing from this otherwise typical bustling cityscape. There are taxis and buses. There are hip bars and pollution. Every other person is talking into a cellphone. But there are no plastic shopping bags, the ubiquitous symbol of urban life.

In 2002, Ireland passed a tax on plastic bags; customers who want them must now pay 33 cents per bag at the register. There was an advertising awareness campaign. And then something happened that was bigger than the sum of these parts.

Within weeks, plastic bag use dropped 94 percent. Within a year, nearly everyone had bought reusable cloth bags, keeping them in offices and in the backs of cars. Plastic bags were not outlawed, but carrying them became socially unacceptable — on a par with wearing a fur coat or not cleaning up after one’s dog.

“When my roommate brings one in the flat it annoys the hell out of me,” said Edel Egan, a photographer, carrying groceries last week in a red backpack.

Drowning in a sea of plastic bags, countries from China to Australia, cities from San Francisco to New York have in the past year adopted a flurry of laws and regulations to address the problem, so far with mixed success. The New York City Council, for example, in the face of stiff resistance from business interests, passed a measure requiring only that stores that hand out plastic bags take them back for recycling.

But in the parking lot of a Superquinn Market, Ireland’s largest grocery chain, it is clear that the country is well into the post-plastic-bag era. “I used to get half a dozen with every shop. Now I’d never ever buy one,” said Cathal McKeown, 40, a civil servant carrying two large black cloth bags bearing the bright green Superquinn motto. “If I forgot these, I’d just take the cart of groceries and put them loose in the boot of the car, rather than buy a bag.”

Gerry McCartney, 50, a data processor, has also switched to cloth. “The tax is not so much, but it completely changed a very bad habit,” he said. “Now you never see plastic.”

In January almost 42 billion plastic bags were used worldwide, according to reusablebags.com; the figure increases by more than half a million bags every minute. A vast majority are not reused, ending up as waste — in landfills or as litter. Because plastic bags are light and compressible, they constitute only 2 percent of landfill, but since most are not biodegradable, they will remain there.

In a few countries, including Germany, grocers have long charged a nominal fee for plastic bags, and cloth carrier bags are common. But they are the exception.

In the past few months, several countries have announced plans to eliminate the bags. Bangladesh and some African nations have sought to ban them because they clog fragile sewerage systems, creating a health hazard. Starting this summer, China will prohibit sellers from handing out free plastic shopping bags, but the price they should charge is not specified, and there is little capacity for enforcement. Australia says it wants to end free plastic bags by the end of the year, but has not decided how.

Efforts to tax plastic bags have failed in many places because of heated opposition from manufacturers as well as from merchants, who have said a tax would be bad for business. In Britain, Los Angeles and San Francisco, proposed taxes failed to gain political approval, though San Francisco passed a ban last year. Some countries, like Italy, have settled for voluntary participation.

But there were no plastic bag makers in Ireland (most bags here came from China), and a forceful environment minister gave reluctant shopkeepers little wiggle room, making it illegal for them to pay for the bags on behalf of customers. The government collects the tax, which finances environmental enforcement and cleanup programs.

Furthermore, the environment minister told shopkeepers that if they changed from plastic to paper, he would tax those bags, too.

While paper bags, which degrade, are in some ways better for the environment, studies suggest that more greenhouse gases are released in their manufacture and transportation than in the production of plastic bags.

Today, Ireland’s retailers are great promoters of taxing the bags. “I spent many months arguing against this tax with the minister; I thought customers wouldn’t accept it,” said Senator Feargal Quinn, founder of the Superquinn chain. “But I have become a big, big enthusiast.”

Mr. Quinn is also president of EuroCommerce, a group representing six million European retailers. In that capacity, he has encouraged a plastic bag tax in other countries. But members are not buying it. “They say: ‘Oh, no, no. It wouldn’t work. It wouldn’t be acceptable in our country,’ ” Mr. Quinn said.

As nations fail to act decisively, some environmentally conscious chains have moved in with their own policies. Whole Foods Market announced in January that its stores would no longer offer disposable plastic bags, using recycled paper or cloth instead, and many chains are starting to charge customers for plastic bags.

But such ad hoc efforts are unlikely to have the impact of a national tax. Mr. Quinn said that when his Superquinn stores tried a decade ago to charge 1 cent for plastic bags, customers rebelled. He found himself standing at the cash register buying bags for customers with change from his own pocket to prevent them from going elsewhere.

After five years of the plastic bag tax, Ireland has changed the image of cloth bags, a feat advocates hope to achieve in the United States. Vincent Cobb, the president of reusablebags.com, who founded the company four years ago to promote the issue, said: “Using cloth bags has been seen as an extreme act of a crazed environmentalist. We want it to be seen as something a smart, progressive person would carry.”

Some things worked to Ireland’s advantage. Almost all markets are part of chains that are highly computerized, with cash registers that already collect a national sales tax, so adding the bag tax involved a minimum of reprogramming, and there was little room for evasion.

The country also has a young, flexible population that has proved to be a good testing ground for innovation, from cellphone services to nonsmoking laws. Despite these favorable conditions, Ireland still ended up raising the bag tax 50 percent, after officials noted that consumption was rising slightly.

Ireland has moved on with the tax concept, proposing similar taxes on customers for A.T.M. receipts and chewing gum. (The sidewalks of Dublin are dotted with old wads.) The gum tax has been avoided for the time being because the chewing gum giant Wrigley agreed to create a public cleanup fund as an alternative. This year, the government plans to ban conventional light bulbs, making only low-energy, long-life fluorescent bulbs available.

New York Times
By Andrew Martin
January 23, 2008

The Whole Foods Market chain said Tuesday that it would stop offering plastic grocery bags, giving customers instead a choice between recycled paper or reusable bags.

A rising number of governments and retailers are banning plastic bags, or discouraging their use, because of concerns about their environmental impact. San Francisco banned plastic bags last year unless they are of a type that breaks down easily. China announced a crackdown on plastic bags a few weeks ago, while other governments, including New York City’s, are making sure retailers offer plastic bag recycling.

Whole Foods officials said they had hoped to eliminate plastic bags for some time but had to decide how to make it work in the chain’s 270 stores.

A. C. Gallo, the company’s co-president and chief operating officer, said Whole Foods tried to get customers to buy reusable bags for several years but “it really never caught on.” That changed when the grocery chain began offering reusable bags for 99 cents, he said.

In addition, he said, Whole Foods was given a test run of sorts when San Francisco banned plastic bags last year. The number of paper bags used in the San Francisco stores increased a mere 10 percent, he said, suggesting that some customers switched to reusable bags.

Two other trial runs, in Toronto and in Austin, Tex., also went well enough that Whole Foods executives felt confident broadening the plastic bag ban to all its stores. It will take effect by April 22, Earth Day.

Whole Foods officials estimate that the store distributes 150 million plastic bags a year.

“The fact of plastic bags is they are not something that has been around forever,” said Michael Besancon, a regional president of Whole Foods and the leader of an environmental task force. “It was paper for many, many years. It’s not really a hardship.”

Plastic bags have become ubiquitous because they are lightweight, cheap and functional. Critics complain that the bags are bad for the environment because they are made from petroleum, are typically tossed after one use, fill landfills, and float into trees, rooftops, roadways and oceans.

They also do not break down easily in a landfill.

An industry organization called the Progressive Bag Alliance, however, counters on its Web site that plastic bags take less energy to produce than paper bags and generate less waste, a position backed by at least one study of the issue. The group also argues that virtually nothing decomposes in modern landfills, including paper and plastic.

The Whole Foods decision is “a bold move, without a doubt,” said Allen Hershkowitz, director of the municipal waste program at the Natural Resources Defense Council. He noted that Americans use 50 billion to 80 billion plastic bags a year.

He acknowledged that paper bags can also harm the environment. But he described Whole Foods Market’s use of bags made from recycled paper as an environmental “winner.”

Whole Foods is a relatively small retailer, but has been influential in the grocery business. Major grocery chains have copied Whole Foods by sprucing up produce sections and offering a wider variety of natural and organic products. The company’s move may prompt other chains to take a look at the bag issue.

Tara Raddohl, a spokeswoman for Wal-Mart, said her company began selling reusable bags in October and was looking to achieve a goal of zero waste.

“Generally speaking, many of our retail competitors as well as ourselves are looking at these options, and how feasible this is, and how this will be received by the consumer,” she said.

HONG KONG — The Chinese government unveiled a detailed plan on Tuesday to limit pollution in China’s lakes by 2010 and return them to their original state by 2030.

The State Council, China’s cabinet, ordered strict regulation of the release of wastewater, the closing of heavily polluting factories near lakes, the improvement of sewage treatment facilities and strict limits on fish farms, according to the official Xinhua news agency.

The council also banned the use of pesticides with highly toxic residue near large lakes as well as detergents containing phosphorus.

While national leaders in Beijing have shown greater interest in recent months in cleaning up the environment, their efforts have frequently met resistance from provincial and local officials more interested in maximizing economic growth.

China’s three main lakes, Tai, Chaohu and Dianchi, have all had algae blooms in recent years. Stimulated by high levels of phosphorus and other chemicals, algae has blanketed large areas of water, killing fish and making the water undrinkable for large numbers of people living nearby.

An algae bloom that covered a large area of Lake Tai last spring was particularly severe and received national attention. The toxic cyanobacteria produced a choking odor up to a mile from the lake’s shores and prevented two million people nearby from drinking or cooking with the water.

Wastewater from fish farms has become another serious problem, and one that the State Council tried to address on Tuesday, ordering that all fish farms be removed from the three main lakes by the end of this year. Fish farms elsewhere are to be more tightly limited to certain designated areas within three years, Xinhua said.

The water cleanup effort will also include the lake behind the Three Gorges Dam on the Yangtze River. Environmentalists warned before the dam was built that it would be hard to prevent toxic pollution from building up in the lake once the river was no longer carrying pollution out to the ocean.

WASHINGTON — A new international ranking of environmental performance puts the United States at the bottom of the Group of 8 industrialized nations and 39th among the 149 countries on the list.

European nations dominate the top places in the ranking, which evaluates sanitation, greenhouse gas emissions, agricultural policies, air pollution and 20 other measures to formulate an overall score, with 100 the best possible.

The top 10 countries, with scores of 87 or better, were led by Switzerland, Sweden, Norway and Finland. The others at the top were Austria, France, Latvia, Costa Rica, Colombia and New Zealand, the leader in the 2006 version of the analysis, which is conducted by researchers at Yale and Columbia Universities.

“We are putting more weight on climate change,” said Daniel Esty, the report’s lead author, who is the director of the Yale Center for Environmental Law and Policy. “Switzerland is the most greenhouse gas efficient economy in the developed world,” he said, in part because of its use of hydroelectric power and its transportation system, which relies more on trains than individual cars or trucks.

The United States, with a score of 81.0, he noted, “is slipping down,” both because of low scores on three different analyses of greenhouse gas emissions and a pervasive problem with smog. The country’s performance on a new indicator that measures regional smog, he said, “is at the bottom of the world right now.”

He added, “The U.S. continues to have a bottom-tier performance in greenhouse gas emissions.”

The list, which is to be released Wednesday at the World Economic Forum in Davos, Switzerland, is the fourth, and most refined, of a series of rankings first issued in 2002. Because of methodological changes, the list this year is not directly comparable to the last one, issued in 2006, in which the United States was ranked 28th.

James Connaughton, chairman of the White House Council on Environmental Quality, said the problem with ozone, which is formed by chemical reactions between oxides of nitrogen, volatile organic compounds and sunlight, was being addressed by the Bush administration in new rules to curb emissions of those chemicals from power plants and from the burning of diesel fuels.

“We recognized this about five years ago,” he said. “We have a program that in the next 10 years is going to address this in a really big way,” with “more than a 90 percent cut” in diesel emissions from trucks and off-road engines like those in construction equipment.

The United States’ low ranking in measures like the amount of carbon dioxide emissions per capita or per unit of electricity — in the bottom 20 percent — is not surprising, Mr. Connaughton said, because the United States contributes a quarter of the new releases of greenhouse gas emissions.

In recent years, he added, the United States has improved its carbon intensity — the output of emissions relative to economic growth. In Europe and Japan, he said, “intensity is not improving as fast, but many of these countries started in a better place.”

The country’s success in cleaning its air and water, he said, now allows policy makers to focus on improving carbon emissions.

India, China and Australia ranked among the bottom 25 nations in the indicator that combined all the climate change scores; China and Australia ranked below the United States. As with earlier versions of the index, the authors created separate lists of countries that are considered peers, either economically or geographically, and scored the performance of nations in those subgroups.

New Zealand and Japan led the Asian-Pacific nations, with performance scores of 88.9 and 84.5. Croatia (84.6) and Albania (84.0) led the list of Eastern European and Central Asian countries, which takes in most of the former sphere of influence of the Soviet Union, not including the Baltic nations. Mauritius (78.1), whose per capita domestic product outstrips those in the other countries of sub-Saharan Africa, led this group, just above Gabon (77.3).

Costa Rica (90.5), Colombia (88.3) and Canada (86.6) led the 26 countries of the Americas; Haiti (60.7) was last in this group.

Belgium (78.4) continued to rank near the bottom of the 28 European nations.

“Belgium remains a shock,” said Professor Esty, who said the heavily industrialized country, riven by centuries-old ethnic quarrels, was 57th among the 149 nations. “Of those ahead of them, only 10 are richer,” he added.

Christine Kim, a research associate of Professor Esty’s, calculated that a country’s wealth, measured as gross domestic product per capita, tended to correlate with a strong performance on such indicators as sanitation, indoor air quality and success in combating diseases — but also with a poor performance on greenhouse gas emissions and agricultural policies.