"WASHINGTON -- President Obama on Monday named two people to his cabinet who will be charged with making good on his threat to use the powers of the executive branch to tackle climate change and energy policy if Congress does not act quickly."

"Crop-friendly snowfall will be moving from the Northern Plains into the central and eastern Midwest overnight Monday and Tuesday, leaving up to an additional six to eight inches of snow, an agricultural meteorologist said on Monday."

"In storm-battered Virginia, the Republican candidate for governor still doubts the science."

"Two guys in a black Pontiac Vibe cruise the streets of Washington’s residential neighborhoods. The only sign of what they are up to is a gray plastic tube hanging out of the trunk. And the fact that they get out of the car frequently to place a black box on manhole covers and study its readings."

"The effects of climate change on the food supply exacerbated the underlying tensions that have led to ongoing Middle East instability."

"Environmentalists have a hope. If they can block the Keystone XL pipeline, they can keep Canada from developing more of its dirty tar sands oil. It takes a lot of energy to get it out of the ground and turn it into gasoline, so it has a bigger greenhouse gas footprint than conventional oil. But the State Department report, which was released Friday, says Keystone won't have much of an impact on the development of that oil from Alberta."

"Tucked away in northeast Texas, Lake Gilmer was the last major reservoir built in the state, more than a decade ago. Local officials said they had intended to share construction costs and water with a new power plant, but the power company backed out, leaving the City of Gilmer with the bill."

"A federal appeals court on Friday upheld Endangered Species Act protections for the polar bear."

"For Jesslyn Brown, sequestration could not come at a worse time of the year."

"PLAINVIEW, Tex. — After two years of drought, people are starting to leave this parched West Texas town."

"Since the drubbing that Superstorm Sandy gave the Northeast in November, there's a new sense of urgency in U.S. coastal cities. Even though scientists can't predict the next big hurricane, they're confident that a warmer climate is likely to make Atlantic storms bigger and cause more flooding."

"SACRAMENTO, Calif. -- California is poised to shatter an all-time weather record by notching the driest January-February period in recorded history across the northern Sierra Nevada."

"LONDON -- The cause of much of the recent extreme weather across the world is climate change triggered by human activities, scientists say. The paper suggests that man-made climate change is repeatedly disturbing the patterns of airflow around the northern hemisphere."

A new study, still tentative, suggests that climate change will have much worse effects on global food production and supply than experts have previously estimated.

"BOSTON -- Concerns have cropped up in recent years that the methane leaks from oil and gas fields could be large enough to pose a significant climate threat."