"Searching for food, one female bear was tracked as she swam for 9 days across the Beaufort Sea before reaching an ice floe. Litigation continues over protection of bear habitat."

In Gillette, Wyoming, coal country, science teachers can feel the pressure against teaching scientific truth about climate in the classroom. Sometimes they push back.

"'Revolutionary action' is needed to achieve sustainable development, UN Secretary-General Ban Ki-moon today told the government and business leaders at World Economic Forum in Davos."

"From the sometimes bizarre front lines of the climate-change culture wars: It seems the brothers Koch, proprietors of the giant, Kansas-based industrial conglomerate and well-heeled supporters of Tea Party causes, have now set their sights on a group of anonymous pranksters who spoofed a Koch Industries press release last month — one that suggested the brothers were having a change of heart on climate change."

"A North Atlantic current flowing into the Arctic Ocean is warmer than for at least 2,000 years in a sign that global warming is likely to bring ice-free seas around the North Pole in summers, a study showed."

"Do we worry now about the consequences of our carbon-intensive lifestyle, or do we let our children cope? The answer has a considerable impact when assessing the economic costs of a warmer planet."

"The 'C-word,' climate, appears to have become to the Beltway what  the 'P-word,' population, has been in climate treaty negotiations for a long time — unmentionable."

"The cost of climate change impacts runs twice as high as previously estimated, according to revised data from a key economic model used by federal agencies."

"Texas officials granted an air permit for a proposed Corpus Christi power plant Wednesday despite calls from federal regulators to delay approval of the controversial request."