Climate Change

"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."

"Retail food prices are predicted to rise as soon as this fall due to the high temperatures, low rainfall and 70-year record drought across the Midwest that have boosted commodity prices for corn, soybeans and other field crops, the U.S. Department of Agriculture said today."

"Cutting soot and other air pollutants could help 'buy time' in the fight against climate change, a senior U.S. official said on Tuesday as seven nations joined a Washington-led plan."

"Mexico's new president is unlikely to implement much of the sweeping climate change law signed in June by outgoing President Felipe Calderon amid inevitable resistance from industry and his party's focus on accelerating economic growth and ramping-up oil and gas production, policy experts said."

"Three simple numbers that add up to global catastrophe - and that make clear who the real enemy is."

"The surface of Greenland's massive ice sheet has melted this month over an unusually large area, NASA has said."

"WHITEHORSE, Yukon Territory — In February 1942, President Franklin D. Roosevelt gave the Army Corps of Engineers an assignment: Build a road from British Columbia across the Yukon to Alaska — in eight months, before winter sets in."

"The League of Conservation Voters will launch a $1.5 million campaign Tuesday targeting five House Republicans who question the connection between human activity and climate change, in an effort to test whether the issue can sway voters."

"BARROW, Alaska — When the United States Coast Guard arrived in this remote corner of the Arctic this month to begin its biggest patrol presence in the waters north of Alaska, only one helicopter hangar was available for rent, and it was not, to put it mildly, the Ritz."