"WASHINGTON, DC -- The U.S. Environmental Protection Agency must meet a court-ordered deadline to issue regulations that clean up power plant water pollution, the U.S. Court of Appeals for the District of Columbia ruled [Tuesday]. The decision turns back an attempt by the utility industry to avoid the financial and operational burdens of the regulations."

"Billions of gallons of raw sewage and contaminated stormwater surge every year into the waterways and onto the streets of New England, as a 40-year-old pledge to clean America's lakes, rivers and streams remains unfulfilled."

"RONAN, Mont. -- In a place where the lives and histories of Indian tribes and white settlers intertwine like mingling mountain streams, a bitter battle has erupted on this land over the rivers running through it."

"TALLAHASSEE -- The state of Florida filed a lawsuit Saturday against the oil company BP and the cement contractor Halliburton over the Deepwater Horizon oil spill, becoming the fourth state to seek damages for the 2010 disaster."

"Record-setting rains in parts of the Midwest have caused hundreds of flight cancellations and flooding, with one northern Illinois hospital evacuating patients due to rising floodwaters."

"A BP executive testified the captain of the oil rig that exploded and sent millions of barrels of oil pouring into the Gulf of Mexico delayed activating the installation’s safety systems after the blast as a trial over the disaster ended."

"Power producers such as Dynegy Corp. and Duke Energy Corp. are bracing for new U.S. rules on the water they discharge, standards that may impose further costs on the embattled coal industry."

"A gluttonous predator is power-eating its way through reefs from New York to Venezuela. It's the lionfish."

"The White House released a plan on Tuesday aimed at protecting oceans, coastal and Great Lakes environments around the United States while safeguarding related businesses that support more than 44 million jobs."

"Drought and demand are pushing the Colorado River beyond its limits — with the needs of more than 40 million people in seven Western states projected to outstrip dwindling supply over the next 50 years, according to an advocacy group's report on endangered rivers released on Wednesday."

"CUCAPÁ EL MAYOR, Mexico — Germán Muñoz looked out at the river before him and talked about the days when dolphins swam here, 60 miles from the sea."

"Nearly 140,000 whales and dolphins could be injured if the Obama administration allows energy companies to conduct seismic research aimed at identifying oil and gas along the Atlantic Coast, according to a new report issued Tuesday."

"High benzene levels in groundwater have been detected about 1,400 feet downstream of the presumed source of a hydrocarbons leak northwest of Parachute, the state Department of Natural Resources said today."

"WASHINGTON -- Last year's huge drought was a freak of nature that wasn't caused by man-made global warming, a new federal science study finds."

"Toxic chemicals clinging to plastics could cause health problems for fish and other organisms in the Great Lakes."