"National Climate Assessment, to be launched at White House on Tuesday, says effects of climate change are now being felt."

"Part of East Antarctica is more vulnerable than expected to a thaw that could trigger an unstoppable slide of ice into the ocean and raise world sea levels for thousands of years, a study showed on Sunday."

"After years of putting other policy priorities first — and dismaying many liberal allies in the process — Obama is now getting into the weeds on climate change and considers it one of the key components of his legacy, according to aides and advisers."

"U.N. Secretary-General Ban Ki-moon said on Sunday he was hopeful that a goal of limiting global temperature rises to a maximum 2° Celsius could be achieved, but urged governments to take practical action before it was too late."

"On Thursday, Judge Paul Crotty, who sits on the federal district court in Manhattan, reluctantly allowed unlimited contributions to independent political groups in New York State. 'Reluctantly,' in fact, doesn’t begin to describe how clenched the judge’s teeth were in writing this remarkable opinion, which eloquently describes the dangers of the very act he was allowing."

"An apple a day usually keeps the doctor away -- unless it's ridden with pesticides."

"Federal regulators said they plan to close part of a New Mexico coal-fired power plant, a day after the Supreme Court ruled that pollution that crosses borders contributes to unhealthy air in neighboring states."

"Scientists have made a surprising discovery about ethanol: The more it was used by drivers in Sao Paulo, Brazil, the more ozone they measured in the local environment."