"Releases from six Missouri River reservoirs, already at historic levels, will be increased again this month, say water managers with the U.S. Army Corps of Engineers."

"A moratorium on new uranium mining around the Grand Canyon expires in six weeks, and the Interior Department is under pressure from conservation groups and mining companies over what to do about it."

"The Supreme Court decided [Monday] not to take up General Electric Co.'s legal campaign over how U.S. EPA exercises its authority to order companies to clean up hazardous waste sites."

"The world must invent new ways to protect people driven from their homes by climate change without copying safeguards for those uprooted by wars or persecution, the head of the U.N. refugee agency said on Monday."

"Japan disclosed Monday that its nuclear accident was more severe in its first days than it had previously admitted -- casting new light on how Tokyo's early handling of the disaster briefly sent its relations with the U.S. into one of the tensest periods in years."

"TransCanada Corp's 591,000 barrel-per-day (bpd) capacity Keystone pipeline resumed shipping crude oil, one week after being shut by a leak at a Kansas pumping station, the Calgary-based company said in a statement."

"The Kentucky coal industry's compliance with U.S. surface mining regulations dropped sharply from 2008 to 2010, while the environmental impact of the violations has worsened, federal records show."