James Hansen of NASA is a true believer in catastrophic Anthropogenic Global Warming. He flew to Englnad recently to testify on behalf of eco-terrorists:

http://canadafreepress.com/index.php/article/4864

I agree that scientists need to give the public more knowledge. The only thing is that regarding AGW scientists don't really yet have a good enough understanding to guide public policy. I disagree with Hansen on the issue of whether or not computer model simulations are actually science. THe moderls are currently so gross that they cannot accurately model cloud behavior, and if they can't model cloud behavior that cannot be relied on. And the models have not accurately predicted the future. For example, despite the models, the actual sea level has fallen over the last two years. If sea level is falling, the earth is not warming.