Generals, admirals say climate change a matter of national security
May 20, 2009, 12 p.m. by S.A. Rogers
Failure to act on climate change leaves us vulnerable to attack, says new report.
Video: Chris Matthews debates global warming denying politician
May 20, 2009, 10:42 a.m.
MSNBC's Chris Matthews speaks with Rep. Dana Rohrabacher (R-California) about why he doesn't believe in climate change.
Video: Jon Stewart interviews EPA chief
May 19, 2009, 9:12 p.m.
Jon Stewart interviews Lisa P. Jackson, the head of the Environmental Protection Agency.