Two days after announcing that greenhouse gases should be regulated as a health threat, the EPA’s chief came to the conference to explain that President Obama is trying to make up for lost time. The president will do his own explaining in person on the last day of the conference.

Sarah Palin surfaced in a Washington Post editorial, urging President Obama to boycott the conference. Her reasoning is a regurgitation of climate change-deniers’ arguments, retorted Al Gore. "The entire North Polar ice cap is disappearing before our eyes," he said. Deny that.

Native Americans, Alaska Natives and First Nations Peoples will convene tomorrow in Copenhagen before the U.S. embassy to "speak out about the U.S. energy industry’s war on indigenous lands and livelihoods." They are part of a burgeoning human rights movement at the conference.