"Greenhouse gas emissions from U.S. power plants fell 4.6 percent in 2011 as more generators were switched to cleaner-burning natural gas and renewable sources from coal, according to new data from the Environmental Protection Agency."

"U.S. Energy Secretary Steven Chu, the Nobel Prize winner who shepherded an effort to help spur a clean energy U.S. economy, will step down after a tenure rocked by the failures of some costly government investments."

"The U.S. government on Friday proposed adding wolverines, feisty but rare members of the weasel family, to the federal threatened and endangered species list because global warming is reducing the mountain snows the animals need for survival."

"When red knots descend on the beaches of Delaware Bay this spring famished from their marathon flight toward the Canadian Arctic from the tip of South America, the rosy-breasted shorebirds may find slim pickings instead of the feast of horseshoe crab eggs they count on to fuel the rest of their migration."

"Citing shrinking mountain snowpacks as a result of climate change, federal wildlife officials are proposing to list wolverines as threatened under the Endangered Species Act."

"The unrelenting drought gripping key farming states in the U.S. Plains shows no signs of abating, and it will take a deluge of snow or rain to restore critical moisture to farmland before spring planting of new crops, a climate expert said on Thursday."

"Superstorm Sandy was a dramatic preview of what cities on the Eastern Seaboard might expect as climate change intensifies, but 12 small, indigenous communities on Alaska's coast provide the most extreme example of how global warming can wreak havoc."

"The American Legislative Exchange Council (ALEC) - known by its critics as a 'corporate bill mill' - has hit the ground running in 2013, pushing 'models bills' mandating the teaching of climate change denial in public school systems."

"Butterflies from the southern US that used to be rare in the northeast are now appearing there on a regular basis. The trend correlates to a warming climate report the authors of a paper in Nature Climate Change."

"It's a lake, yes. But it's also a bomb. Those pale blue blobs, stacked like floating pancakes down at the bottom of this photograph? They're astonishingly beautiful, yes, but they can be dangerous."

"Changes in the climate are happening much faster than animals are able to respond."

"No part of the U.S. will escape the harsh consequences of climate change, which has already begun to cause trouble from Alaska to Florida, and from Maine to Hawaii, and which will worsen as the century goes on. But according to a report released January 28, the nation’s coastlines -- Atlantic, Gulf, Pacific and Great Lakes -- are likely to get the worst of it."

"When President Obama during his inauguration speech made a case for tackling human-driven climate change, it felt like deja vu for many in the environmental community -- including members of religious groups who have long looked to him for action."

Climate change is already creating refugees along the coastal lowlands of Bangladesh.

"Heat rising up from cities such as New York, Paris and Tokyo might be remotely warming up winters far away in some rural parts of Alaska, Canada, and Siberia, a surprising study theorizes."