"The U.S. Fish and Wildlife Service said Thursday evening that it would not grant the American pika -- a tiny mammal whose mountainside habitat is being threatened by climate change -- protection under the Endangered Species Act."

"All along the Oregon coast over the last month, hundreds of brown pelicans have turned up dead, starving or begging for food. ...Researchers, at a loss to explain the casualties, are looking at unusual ocean currents and the depletion of fish stocks -- as well as warmer temperatures, toxic runoff and algae blooms -- as possible causes."

"Major snowstorms are set to bury the mid-Atlantic states this weekend after record snowfalls in December. Last month California was awash in rain. The Gulf states have seen heavy weather lately as well. Turns out it's not just a run of bad luck. What's behind a lot of this winter's weather is El Nino... ."

"The Obama administration's top climate adviser strongly defended a cap on emissions a day after the president suggested Congress might move an energy bill without such a cap in place."