"FAIRBANKS -- Ounce for ounce, methane has an effect on global warming more than 30 times more potent than carbon dioxide, and it's leaking from the Arctic Ocean at an alarming rate, according to new research by scientists at the University of Alaska Fairbanks."

"We've heard that climate change likely played a very minor role in the havoc that typhoon Haiyan wrought on the Philippines."

"Outgoing New York City Mayor Michael Bloomberg might use some of his fortune on behalf of 2014 candidates who are hawkish on battling climate change."

"The National Park Service (NPS) is walking back comments that showcased doubts about whether natural gas development can help battle climate change, acknowledging they 'did not receive appropriate review.'"

A major reason for the U.S. to cut its greenhouse gas emissions is to play a global role as a technological, economic, and political leader while the world is shifting to cheaper production of low-carbon energy.

"WELLINGTON, New Zealand — A New Zealand judge on Tuesday rejected a Kiribati man’s claim that he should be granted refugee status because of climate change."

"All across the country -- most recently, in the state of Texas -- local battles over the teaching of evolution are taking on a new complexion. More and more, it isn't just evolution under attack, it's also the teaching of climate science."

A new study says that U.S. emissions of the greenhouse gas methane, often emitted by farm and energy operations, are much larger than previously estimated.

"The U.S. government's authority to regulate air pollution nationwide, often against the wishes of Republican-leaning states, could face new curbs when the U.S. Supreme Court takes on two high-stakes cases in coming months."

"TORONTO -- Ontario is going coal-free. The largest coal-burning power plant in North America, Nanticoke Generating Station on the north shore of Lake Erie, will stop burning coal this year, Ontario Premier Kathleen Wynne announced on Thursday."