Daniel P. Schrag, a White House climate adviser and director of the Harvard University Center for the Environment, tells the New York Times "a war on coal is exactly what's needed." Later today, President Obama will give a major "climate change" address at Georgetown University.

"Everybody is waiting for action," Schrag tells the paper. "The one thing the president really needs to do now is to begin the process of shutting down the conventional coal plants. Politically, the White House is hesitant to say they're having a war on coal. On the other hand, a war on coal is exactly what's needed."

Obama's speech today is expected to offer "a sweeping plan to address climate change on Tuesday, setting ambitious goals and timetables for a series of executive actions to reduce greenhouse gas pollution and prepare the nation for the ravages of a warming planet," according to the Times.