By wplog

Published Monday, Dec. 3, 2007 | 3:30 p.m.

Updated Thursday, Oct. 30, 2008 | 2:14 p.m.

(Tancredo dropped out of the presidential race for the Republican nomination on Dec. 20, 2007. See a video of his explanation on his campaign Web site.)

He says the evidence suggests global warming is happening, but there isn't enough evidence to suggest that human activity is the main cause. However the U.S. needs to move away from petroleum products for national security reasons because it must be imported from non-friendly nations. He favors increasing drilling in Alaska's Arctic National Wildlife Refuge and on the continental shelf. He supports increasing the use of biofuels and in relying more on nuclear energy, which, he says, is safe. He says the problems of creating safe nuclear waste storage sites can be solved.

YouTube video: Tancredo speaks about global warming and energy use on June 23, 2007, in Littleton, N.H..

You Tube video: Tacredo speaks about global warming from a caller to New Hampshire Public Radio's "The Exchange" on Sept. 5, 2007.

— Las Vegas Sun new media managing editor Dave Toplikar compiled this report.