"NEW ORLEANS -- Lawyers for BP Plc and the federal government sparred on Monday over the methods competing teams of scientists used to estimate the size of the company's 2010 oil spill in the U.S. Gulf of Mexico."

"NEW AUBURN, Wisc. --  Frances Sayles is cleaning her counters and vacuuming her home more often in an attempt to keep a never-ending stream of sand at bay. But it is not just the cleaning that concerns her. She also worries about her health."

"The coal sector is in its death throes, thanks to cheaper alternatives and a growing distaste for what is the worst of the global-warming fuels. The latest casualties: two coal-burning power plants in Pennsylvania that will pump their last energy into the grid, and cough their last pollution in to the air, this weekend."

"The U.S. Environmental Protection Agency could resume rulemaking for the disposal of toxic coal ash after a federal judge ruled against the agency in a lawsuit brought by environmental groups."

"Fujairah is emerging from its status as a back-water. The United Arab Emirates, led by Abu Dhabi, is turning the little emirate into an export hub for its oil in case of trouble from Iran."

"BP's manager in charge of controlling the Macondo blowout in 2010 was never trained to permanently plug a ruptured oil well and said in court on Wednesday the British company was not fully prepared for the worst offshore oil spill in U.S. history."

"Fracking may be contaminating a Pennsylvania river with radioactive waste, a Duke University study to be published this week shows."

"President Obama's pick to lead the Federal Energy Regulatory Commission has asked that his name be yanked from consideration, citing a deadlocked Senate panel and stiff opposition from right-wing groups that turned the confirmation process into a 'blood sport.'"

"The U.S. Army is spending billions of dollars shifting toward solar energy, recycled water and better-insulated tents. The effort isn’t about saving the Earth."

"MARSHALL, Mich. -- People who canoe on, or wade or swim in, the Kalamazoo River near Marshall in southwestern Michigan are not expected to suffer any long-term harm from chemicals left in the water when an oil pipeline burst in 2010, according to a state report."