Environmental Defense Fund
Get the Facts on Global Warming

Jim Hansen - Global Warming Guru
Director of the NASA Goddard Institute for Space Studies and Adjunct Professor of Earth and Environmental Sciences at Columbia University’s Earth Institute.

Nova - Interview with Dr. S. Fred Singer
Atmospheric physicist at George Mason University and founder of the Science and Environmental Policy Project

Climate Change EPA

Skeptical Science
Explaining climate change science & rebutting global warming misinformation

Climate Change Facts
Answers to Common Questions