"Methane emissions from coal mines escaped being curbed by the Environmental Protection Agency, which said mandatory U.S. budget cuts didn't leave it with the resources to determine if the pollution is a significant risk."

"The United States' new proposal to let countries draft their own emissions reduction plans rather than working toward a common target can unlock languishing U.N. climate negotiations, the U.S. climate change envoy said on Tuesday."

"BILLINGS, Montana — State officials in the Northern Rockies on Monday lined up against a federal proposal to give new protections to the carnivorous wolverine, as climate change threatens to melt the species' snowy mountain strongholds."

"The Earth's wettest regions are likely to get wetter while the most arid will get drier due to warming of the atmosphere caused by increased levels of carbon dioxide, according to a new NASA analysis of more than a dozen climate models."

"The United States has failed to take action to mitigate climate change thanks in part to the large number of religious Americans who believe the world has a set expiration date."

"BOISE, Idaho -- Two small but unseasonably early fires burning in northern California's wine country and another wind-whipped blaze farther south likely are a harbinger of a nasty summer fire season across the West."

A new analysis says federal crop insurance not only allowed corn and soybean farmers to survive last summer's drought, it also allowed them to make higher profits than in a normal year -- at taxpayer expense.

"Environmental groups on Monday announced a new ad campaign that highlights ExxonMobil's massive oil spill in Arkansas last month. The ads will be concentrated in the Washington, D.C., Metro's Foggy Bottom station, which is used by many State Department employees commuting to work, as the agency considers whether to approve the construction of the Keystone XL pipeline."

"The latest round of international climate change talks commenced [Monday] with the now perennial warning about the need for greater urgency from governments as they battle to curb global greenhouse gas emissions."

"Scientists monitoring global atmospheric carbon dioxide concentrations report that, for the first time in human history, CO2 levels could soon rise above 400 parts per million for a sustained period of time in much of the Northern Hemisphere."