"Once black with oil, the Kalamazoo River runs clear now. But EPA orders dredging and says it will be years before the spill's long-term effects are known."

"Oil field services firm Halliburton will plead guilty to a misdemeanor charge of destroying evidence related to the 2010 Gulf of Mexico oil spill in exchange for a fine and probation, the Justice Department said Thursday."

"SAN ANTONIO, Texas -- To address thousands of raw sewage discharges  in violation of the Clean Water Act, the San Antonio Water System has agreed to a $1.1 billion upgrade to its infrastructure and will pay a $2.6 million civil penalty."

"After a three-decade delay, the U.S. Environmental Protection Agency has proposed the first controls that would significantly curb power plant discharges of toxic coal ash and sludge into the nation's waterways, according to a report by five national environmental organizations."

"At first glance, Daliuta in northern China appears to have a river running through it. A closer look reveals the stretch of water in the center is a pond, dammed at both ends. Beyond the barriers, the Wulanmulun’s bed is dry."

"Oil spills at an oil sands operation in Cold Lake, Alberta have been going on for weeks with no end in sight, according to a government scientist."

"PITTSBURGH -- The boom in natural gas drilling has cast two opposing documentary filmmakers in unlikely roles."

"The number of spills and other accidents from railroad cars carrying crude oil has skyrocketed in recent years, up from one or two a year early in the previous decade to 88 last year."

"A landmark federal study on hydraulic fracturing, or fracking, shows no evidence that chemicals from the natural gas drilling process moved up to contaminate drinking water aquifers at a western Pennsylvania drilling site, the Department of Energy told The Associated Press."

"Reports that would reveal whether Exxon properly maintained its Pegasus pipeline are being kept from the public. The data has national ramifications."