James V. Hansen: “There is a real danger that we will hand young people a climate system that is out of control.”

I think it is essential that we give back 100 percent of the money that we take in the tax.

We have a global emergency.

The Obama administration is being forced into a political compromise. It has sacrificed a strong position on mountaintop removal in order to ensure the support of coal-state legislators for a climate bill.

With regard to China and India and the likelihood that they would cooperate, it should be pointed out they will suffer more from climate change than we will.