An EPA study of possible gas drilling pollution in Wyoming has become a case in point in a national legislative battle.

NY state Senator Thomas Moran (R) played a critical role in passage of a $5-billion green jobs and energy bill for the state.

Intensified monitoring for toxics in the air around certain schools has only raised more questions about health effects -- and some lawsuits.

"Some dairy farmers are investing in machines that turn gases from cow poop into usable energy. The technology keeps potent climate change gases out of the atmosphere. But ... some California farmers are getting into trouble with air pollution officials."

Lawyers for a long-established sustainable forest products label are challenging the legitimacy of another label backed by the paper and timber industry.

"India's environment minister said the country will not agree to binding emission targets and that it would not be a disaster if global climate change talks in December fail."

After he finishes health legislation, Senate Finance Committee Chairman Max Baucus will stake a claim of jurisdiction on the climate bill.

"In the last five years alone, chemical factories, manufacturing plants and other workplaces have violated water pollution laws more than half a million times. The violations range from failing to report emissions to dumping toxins at concentrations regulators say might contribute to cancer, birth defects and other illnesses. However, the vast majority of those polluters have escaped punishment."

"The federal government, acting to protect endangered fish, is setting up new rules to limit where and when orchardists, farmers and others can use some common pesticides. ... The rules, coming from the Environmental Protection Agency, follow from a decision last year by the National Marine Fisheries Service to require limits on three common pesticides -- chlorpyrifos, diazinon and malathion -- in Oregon, Washington, Idaho and California."

"Dozens of coal-mining permits proposed across Appalachia need much more scrutiny because of concerns they will illegally damage water quality, the Obama administration said Friday."