"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."

"The United States is posting rapid growth in the waste of natural gas in new oil fields where the fuel is either burned or vented into the atmosphere.  Experts say the process damages the environment and fails to maximize the return to investors."

"The most expansive drought in more than a half century intensified this week and stretched further into major farm areas of the western Midwest where crops had largely been shielded from the harsh conditions that decimated yields further east."

"More than half of the continental United States is currently suffering through the worst drought in 50 years, with heat and a lack of rain rippling through the middle of the country. Crops are wilting, soils are cracked, and some dried-out forests are catching fire. U.S. corn production in particular is dwindling. So is this a glimpse at our hotter, drier future? It appears so."

"A chunk of ice twice the size of Manhattan has parted from Greenland’s Petermann glacier, a break researchers at the University of Delaware and Canadian Ice Service attributed to warmer ocean temperatures."