A coal-fired power plant in Georgia has neighbors worried about the consequences of its ash-disposal pond.

"Durham School Services will pay a $90,000 federal fine and do environmental projects worth $348,000 to settle charges that it routinely allowed its school buses to idle excessively in Connecticut, Rhode Island, and Massachusetts. The company operates in 30 states and has one of the largest school-bus fleets in the nation."

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"Scientists find that all 93 strains of bacteria collected from deep inside Lechuguilla Cave at Carlsbad Caverns in New Mexico are already resistant to at least one of the antibiotics we use to fight infections."

"The U.S. Food and Drug Administration said [Wednesday] it is calling on the nation's pork, beef, and poultry producers to reduce their use of antibiotics. But some watchdog groups say this voluntary guidance doesn't go nearly far enough."

After 18 months of resistance from the White House Office of Management and Budget, the US EPA has withdrawn proposed guidelines for cleaning up dioxin-contaminated soil at polluted sites. EPA says other guidelines issued in the meanwhile made them unnecessesary. Environmental groups condemned the move and the chemical industry applauded it.

"SAN FRANCISCO — Some nail polishes commonly found in California salons and advertised as free of a so-called 'toxic trio' of chemicals actually have high levels of agents known to cause birth defects, according to state chemical regulators.

A Department of Toxic Substances Control report to be released Tuesday determined that the mislabeled nail products have the potential to harm thousands of women who work in more than 48,000 nail salons in California, and their customers.

"Maryland is about to become the first state to ban the use of additives containing arsenic in chicken feed, a practice already prohibited by Canada and the European Union."

"Natural-gas companies are taking concerns about looming Interior Department 'fracking' regulations to the White House with efforts that include a meeting between a major producer and the Obama administration’s top regulatory official."

"LEIPZIG, Germany — For 800 years, the St. Thomas Boys Choir has been filling churches with pure, young voices. Now it’s confronting a confounding phenomenon: Every year, those voices are cracking with teenage angst just a little earlier than before."