"After the spill, the crude oil was expected to biodegrade and wash away from Prince William Sound. But that didn't happen."

"Since 2004, [Ohio] has allowed 42 treatment facilities, power plants and factories to ignore federal limits on dumping mercury into lakes, rivers and streams."

"TVA's new spokesman — brought in to help rehab its credibility after the coal ash disaster — was enmeshed at his previous job at NASA in a Bush administration controversy in which climate change scientists said they were censored."

"U.S. Commerce Secretary Gary Locke declared a commercial fishing disaster for Yukon River king salmon Friday following two years of poor runs, fishing restrictions and bans."

"The U.S. Environmental Protection Agency this morning issued its proposed limits for phosphorus and nitrogen in Florida lakes and rivers -- a move anticipated by industry and environmental groups alike."

"Federal investigators are significantly narrowing the scope of their probe of the Bayer CropScience Institute plant as a result of the company's plan to reduce its stockpile of the deadly chemical methyl isocyanate."

As early as Wednesday, Alaska Senator Lisa Murkowski (R) may offer her controversial amendment freezing EPA's authority to regulate greenhouse gases. Her motives for doing so may rise from a quest for power in a hamstrung Senate.

"The League of Conservation Voters on Thursday launched a $350,000 ad blitz for the Massachusetts special election that accuses Republican candidate Scott Brown of supporting 'Bush-Cheney policies' on energy."

"The poor nation has long suffered from a lack of medical care and rampant disease. With the earthquake, aid agencies must build a healthcare system on the fly."

"U.S. Food and Drug Administration officials say they are powerless to regulate BPA, although they have declared the chemical to be a safety concern for fetuses, babies and young children."