Climate Change:

World Bank's Watson and AEI's Hayward discuss economics, climate change science

How can the world's economies address climate change without sacrificing growth? Should governments change agricultural and industrial policies to slow global warming? Or are private market-based trading systems more effective? World Bank chief scientist Robert Watson and Steven Hayward, a scholar and researcher at the American Enterprise Institute and the Pacific Research Institute, discuss the economics of climate change, the roles of the government and the private sector, and how to raise public awareness and involvement.