"A settlement reached in federal court promises an accelerated attack on pollution from the labyrinth of pipes under Boston and from pavement runoff, an effort designed to prevent raw sewage and other pollutants from reaching area waterways."

"SAN FRANCISCO -- The Center for Biological Diversity filed a legal petition with the U.S. Environmental Protection Agency Wednesday that asks the agency to set plastic pollution limits for ocean waters under the Clean Water Act."

"WILDWOOD, Mo. -- The wells supplying people’s homes are running dry here at the heart of the nation’s drought, which the government announced on Thursday has spread to 63.2 percent of the country, centered in the parched earth of the southern Midwest."

"NEW YORK -- Two years before Hurricane Irene created the prospect of a flooding nightmare in New York City, 100 scientists and engineers met to sketch out a bold defense: massive, moveable barriers to shield the city from a storm-stirred sea."

"If you’re worried about picking up an infectious disease this summer, you may be fretting about catching West Nile disease from a mosquito, H3N2v influenza from a pig, or salmonella from a cantaloupe.  But for those who like to dabble in pure medical horror, there’s little scarier to ponder than a brain-eating amoeba lurking in your tap water."

"After investing billions of dollars and navigating a gantlet of legal and regulatory hurdles in its seven-year quest to explore for Arctic oil, Royal Dutch Shell PLC could face additional delays as it awaits the end of whale hunting season in the Beaufort Sea."

"While many cities around the country grapple with drought and excessive heat this year, city planners in Boston have something else on their minds: the prospect of rising water."

"Royal Dutch Shell is spending billions of dollars to drill the first oil wells in U.S. Arctic waters in 20 years, backed by an Obama administration eager to show it wasn't opposed to offshore exploration. But the closely watched project isn't going the way the company or the government hoped—illustrating the continuing challenge of plumbing for natural riches in one of the world's most unforgiving locations."