National (U.S.)

"No fish can escape mercury pollution. That's the take-home message from a federal study of mercury contamination released Wednesday that tested fish from nearly 300 streams across the country."

"A new study has found that downloading music is substantially better from an emissions perspective than buying compact discs."

"Very low doses of some types of the herbicide Roundup can disrupt human liver cell function; the formulations' toxicity may be tied to their 'inactive' ingredients rather than the active weed-killing ingredient glyphosate."

Some parts of the U.S. are "food deserts," where liquor stores may vastly outnumber grocery stores. Now one Detroit group is fixing that by taking fresh veggies to an inner city neighborhood in what looks like a Good Humor truck.

New research offers a partial solution to the ongoing mystery of deformed frogs.

"The chairman of agribusiness giant Monsanto demanded Monday that his counterpart at DuPont -- his firm's leading competitor in the seed business -- appoint a special committee to investigate what he said was a pattern of covert attacks on Monsanto's business practices by DuPont."

"Hard on the heels of the health care protests, another citizen movement seems to have sprung up, this one to oppose Washington's attempts to tackle climate change. But behind the scenes, an industry with much at stake -- Big Oil -- is pulling the strings."

"Congressional investigators have uncovered five more letters sent to members of Congress that falsely claimed to be from charities expressing opposition to climate change legislation."

"The manufacturer settles an environmental lawsuit with California over lead used to keep the artificial turf green. AstroTurf and other turf-makers insist their product is safe in California."

"U.S. Agriculture Secretary Tom Vilsack on Friday outlined a vision for managing the nation's forests that placed a high priority on restoration to protect water resources and combat climate change."