"If the U.S. adopts a cap-and-trade program, companies facing carbon controls could meet part of their obligations by preserving Earth's largest tropical forest."

"A last-ditch attempt at passing a climate change bill begins in the Senate this week with senators mindful that time is running short and that approaches to the legislation still vary widely, according to sources."

"A panel of eminent U.S. and European scientists has confirmed the widespread scientific consensus that the Earth's climate is warming due to human activities, but said they and their colleagues should have responded more quickly and effectively to news of an error in a major climate report and hacked researcher e-mails."

"The sharp-tongued U.N. official who shepherded troubled climate talks for nearly four years announced his resignation Thursday, leaving an uncertain path to a new treaty on global warming."

"The U.N. climate chief Yvo de Boer has resigned to join a consultancy group as an adviser, the U.N. climate secretariat said on Thursday, two months after a disappointing Copenhagen summit."

"Industry groups, conservative think tanks, lawmakers and three states filed 16 court challenges to U.S. EPA's "endangerment" finding for greenhouse gases before yesterday's deadline, setting the stage for a legal battle over federal climate policies."

"The coastal fog that gives San Francisco its romantic ambience is thinning out, a boon to drivers but a real threat to the giant redwoods there, researchers reported on Monday."

"There’s an interesting insurgency that may give lie to recent predictions of federal failure on cap and trade. Sen. Maria Cantwell (D-Wash.) has a modified 'cap and dividend' bill, called the CLEAR Act, that’s slowly but surely picking up momentum."

"Ex-weatherman Anthony Watts says many US weather stations produce unreliable data because they are located next to artificial heat -- but a scientific analysis suggests that, if anything, such stations underestimate warming."