Air

Negotiations over an international treaty to combat mercury emissions will reach a climax next month in Geneva.

"A coalition of seven eastern states led by New York plans to sue the U.S. Environmental Protection Agency for failing to issue new guidelines to curb methane emissions, a greenhouse gas that may be linked to climate change."

"The young, the elderly and the weakened in Fairbanks risk accelerated health problems every winter because of particulate. Much of it comes from wood smoke produced by homeowners trying to cut their fuel bills."

"The Natural Resources Defense Council thinks it has the perfect solution to regulating planet-warming emissions from existing power plants. But can the group sell the Obama administration Environmental Protection Agency on it?"

"For years, the controversy over natural gas drilling has focused on the water and air quality problems linked to hydraulic fracturing, the process where chemicals are blasted deep underground to release tightly bound natural gas deposits."

"Slowing cargo vessels near coastlines by 10 to 15 miles per hour could dramatically cut ships’ air pollution, according to a new study. But only a few U.S. ports have initiated such efforts."

"New NAACP analysis pinpoints the disproportionate impact from coal-fired power plants on minorities and the poor."

"Georgia tops all other states for the amount of power it generates from coal-burning units that are “ripe for retirement” because they aren’t cost-effective, according to a Union of Concerned Scientists report."

"Among air experts, it's an open secret: federal and state officials grossly undercount a crucial type of air pollution, often by an order of magnitude and particularly in areas like Houston with its major concentrations of petrochemical plants."