President Obama's vow to address climate change in his second Inaugural Address January 21 could actually prove more than bold words. Despite the failure of the 111th and 112th Congresses to pass a cap-and-trade bill or any other major climate change legislation, Obama clearly has the power to limit greenhouse gas emissions himself, using his Supreme Court-tested executive authority under the Clean Air Act and other powers. Key Congressional Democrats are urging him on.

"The U.S. Environmental Protection Agency is turning to a Houston activist to lead the fight against environmental injustices around the country."

"A Harvard academic has put the blame squarely for America's failure to act on climate change on environmental groups. She also argues that there is little prospect Barack Obama will put climate change on the top of his agenda in his second term."

"President Obama made addressing climate change the most prominent policy vow of his second Inaugural Address on Monday, setting in motion what Democrats say will be a deliberately paced but aggressive campaign built around the use of his executive powers to sidestep Congressional opposition."

"Of all the Idle No More protests that sprung up on Wednesday's national day of action across Canada, what may have worried the conservative government of Stephen Harper the most was a gathering of aboriginal young men banging tribal drums outside a hotel in downtown Vancouver."

"The entire future of Shell's drilling plans in the Arctic was put in doubt on Friday after two of Barack Obama's most trusted advisers called for a permanent halt to oil exploration."

"One of the chief expectations of those who voted for President Obama is that he moves assertively to pass climate change legislation, whatever the political climate in Washington."

"As America wakes up to the dangers ahead, the president has a historic opportunity to take bold action on global warming."

"CHEYENNE, Wyo. -- Gov. Matt Mead has joined those expressing disappointment that the U.S. Environmental Protection Agency has extended for a third time a public comment period on a report on groundwater pollution in a Wyoming gas field rather than moving toward wrapping up the study."

"Barack Obama's top adviser on oil drilling and the management of America's last wide open spaces announced on Wednesday that he would leave the cabinet by March. The departure of Ken Salazar as interior secretary leaves Obama with virtually a clean slate to remake his energy and environmental team."