"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."

"SAVAR, Bangladesh — On the worst days, the toxic stench wafting through the Genda Government Primary School is almost suffocating. Teachers struggle to concentrate, as if they were choking on air. Students often become lightheaded and dizzy. A few boys fainted in late April. Another retched in class."

"Tokyo Electric Power Co. has started taking measures to contain highly radioactive groundwater at the Fukushima No. 1 nuclear plant, but its strategy is based on a theory that is disputed by industry experts."

"Royal Dutch Shell Plc has agreed to cut pollution at its joint-venture 327,000 barrel per day (bpd) refinery in the Houston suburb of Deer Park, Texas, according to an announcement on Wednesday by the U.S. Justice Department and U.S. Environmental Protection Agency."