Reuters: President Barack Obama lampooned congressional skepticism over climate change on Wednesday, saying that lawmakers who balk at tackling air pollution are either blind to science or cowed by extremists.
In a speech to the League of Conservation Voters, the president enumerated the steps he has taken to slow pollution and rein in emissions that scientists say have trapped heat in the earth's atmosphere.
One such measure, a sweeping plan to cut power plant pollution unveiled earlier this month,...