"The Obama administration is ordering an ambitious cleanup of the Chicago River, a dramatic step toward improving an urban waterway treated for more than a century as little more than an industrialized sewage canal."

"Lawmakers intensified their shootout over oil yesterday, with House Republicans passing a bill to enhance drilling while Democrats launched a plan to rescind tax breaks for major oil companies and invest in cleaner transportation."

"In the deep waters off Cuba's north coast, a Chinese-built oil rig is due to begin drilling this fall in an area geologists believe may have huge beds of undersea crude."

"The Texas House on Wednesday approved what would be the nation's first law to require drilling companies to publicly disclose the contents of fluids used in hydraulic fracturing."

"French lawmakers opened debate on Tuesday on proposals to ban a method for extracting oil and gas deposits from shale because of environmental concerns, throwing up the first serious stumbling block to firms that want to use the practice."

"Methane levels were 17 times higher in ground water near areas where shale-gas 'fracking' wells had been drilled in Pennsylvania, compared with areas where no gas drilling had occurred, a new study has found."

"During an audit last year, federal authorities found an industrial plant had flushed pollutants into Columbia’s sewer system without making sure the contaminants were at legal levels."
 

Phosphorus, mined primarily from phosphate rock, is a key fertilizer ingredient that maintains U.S. farm productivity. But once it runs off into lakes and streams it can be too much of a good thing.

"Federal pollution authorities have quietly stepped in to help Minnesota force a huge sugar beet processor near Renville to end its long history of fouling streams that lead to the state's most troubled river."

"Washington has become the first state to ban pavement sealants that contain coal tar. The state made the move in response to recent studies that show runoff from macadam treated with these products can pollute lakes and streams."