"Closed-door meetings between a select group of environmentalists and a handful of electric utility executives may determine the fate of climate change legislation in the Senate."

"The waters in Puget Sound's main basin are acidifying as fast as those along the Washington Coast, where wild oysters have not reproduced since 2005."

"TXI will permanently shut down its four oldest, highest-polluting cement kilns in Midlothian and will stop burning hazardous waste as fuel, the Dallas-based company said Tuesday."

"In response to a challenge from environmentalists, U.S. EPA has agreed to examine its air pollution rules for 28 industry sectors within the next eight years, setting the stage for review of the emissions control technologies used by large sectors including the paper, furniture and aerospace industries."

"The Obama administration is proposing a new rule to tighten restrictions on pollution from coal-burning power plants in the eastern half of the country, a key step to cut emissions that cause smog."

"The Environmental Protection Agency is 10 years behind schedule in setting guidelines for a host of toxic air pollutants, according to a report from the agency’s inspector general."

"The Environmental Protection Agency issued a new health standard on Thursday for sulfur dioxide emissions, the first such revision in nearly 40 years."

"The Environmental Protection Agency moved Tuesday to end a long-running dispute with Texas over how the state regulates emissions, including cancer-causing toxins such as benzene and butadiene, from dozens of refineries that produce a third of the nation's gasoline and billions of dollars of petrochemicals."

"The EPA is warning that Gulf Coast residents are at risk of headaches, nausea, and other ill health effects; the culprit is air pollution from the oil burns that response teams are conducting to try to keep the big slick away from coastlines."

"Six in 10 Americans -- about 175 million people -- are living in places where air pollution often reaches dangerous levels, despite progress in reducing particle pollution, the American Lung Association said in a report released Wednesday."

"The nation's oil and chemical plants are spewing a lot more pollution than they report to the Environmental Protection Agency -- and the EPA knows it. But the federal agency has yet to adopt more accurate, higher-tech measuring methods that have been available for years."

"When you combine Albuquerque's few trees with the city's hot, dry and often windy weather, it could mean big problems for allergy sufferers. This despite a 1994 pollen-control ordinance that bars residents from planting certain types of trees."

"The Environmental Protection Agency has ordered air pollution limits tightened on a Baltimore trash-to-energy incinerator after finding the state improperly relaxed them and did not require adequate monitoring of the plant's toxic emissions."

"The Air Quality Management District is hoping users of traditional gas-powered lawn mowers will help them "mow down air pollution" when, for the eighth year, the air pollution control agency hosts a series of lawn-mower exchanges throughout Southern California. The program allows local residents to trade in a gasoline mower and receive a new electric mower at a reduced price."

"Plumes of toxic, smog-causing chemicals from Barnett Shale natural-gas operations are so common that inspectors find them nearly every time they look, a Dallas Morning News examination of government records shows. What's more, the inspectors have rarely looked."