"AUSTIN, Texas -- A cancer-causing sealant that covers thousands of parking lots, school playgrounds and driveways in Austin and Travis County has officials debating over its effect on human health."

"Some 60,000 metric tons of radioactive waste is stored at nuclear power plants across the country, awaiting federal action that’s already a decade late."

"Many urban streams have become salty enough to harm aquatic life, largely because of salt used for deicing roads in the winter, according to a new government study released Wednesday."

"About 50 medical waste incinerators nationwide will have to reduce their air pollution under new regulations announced Wednesday by the Environmental Protection Agency."

"The Obama administration signaled Wednesday that it would scrap a controversial Bush-era rule that set stricter limits for smog but fell short of scientific recommendations."

"The Interior Department announced on Wednesday that it was ending an oil and gas royalty program that ignited a scandal last year when it was disclosed that federal employees had engaged in corruption, drug use and sexual misconduct with oil industry officials."

"Democratic leaders in the Senate said last night they may wait until next year to take up climate change legislation, jeopardising the prospect of reaching a deal to avoid the most catastrophic consequences of global warming."

"This year, the Heinz Awards divided $1 million in prize money to 10 people who had done exemplary work in protecting the environment. They included Grist founder Chip Giller, happy-food guru Joel Salatin, and Stanford professor Christopher Field, among others."

"For the first time in nearly 30 years, the Environmental Protection Agency plans to limit the quantity of toxic metals that coal-fired U.S. power plants release into waterways."