"Athletes completing their final pre-Olympics training, and members of the public gathering in London for the final stages of the Olympic torchrelay, have been warned of high levels of pollution in the UK capital on Thursday, ahead of the opening ceremony on Friday night."

"GALVESTON - With the world focused on a BP rig explosion in the spring of 2010 that caused the worst oil spill in U.S. history, a massive release of pollutants from the company's Texas City refinery went largely unnoticed."

"WASHINGTON -- The Agriculture Department says a statement on its website encouraging its employees not to eat meat on Mondays was made without proper clearance."

"WASHINGTON -- The Republican-led House on Thursday passed legislation that would freeze major government regulations until the unemployment rate, now at 8.2 percent, drops to 6 percent or below. The latest GOP attempt to rein in Obama administration's rulemaking, like previous anti-regulation bills, is virtually certain to die in the Democratic-controlled Senate."

"A comparatively low-priced disaster bill for livestock producers hit by the worst drought since 1956 may be the ticket to passage for a $500 billion farm bill now in limbo in Congress."

"Strong summer thunderstorms that pump water high into the upper atmosphere pose a threat to the protective ozone layer over the United States, researchers said on Thursday, drawing one of the first links between climate change and ozone loss over populated areas."

"Shell is scaling back plans to drill up to five wells in Arctic waters this summer amid a series of setbacks, including stubborn sea ice still clinging to Alaska’s shores and delays in construction of an emergency oil spill containment barge."

"BILLINGS, Mont. -- Environmentalists filed notice Wednesday that they plan to sue the six companies that co-own eastern Montana's Colstrip power plant over alleged pollution violations."

"HARRISBURG, Pa. -- A Pennsylvania appellate court panel yesterday struck down provisions in a new law regulating the state's booming natural gas industry that opponents said would leave municipalities defenseless to protect homeowners, parks and schools from being surrounded by drilling sites or waste pits."