Videos

Participants talked about the science of global climate change, efforts to encourage sustainable environmental policies, the threat posed by climate change, and the role of government and bu…

The first panel of witnesses testified about possible political interference in the work of government climate change scientists. They described instances in which officials who were previou…

James Hansen talked about human interference with the climate and what can be done by the public and policy makers to prevent irreversible environmental damage to the planet. He showed slide…