The cost of global warming
Broadcast: Midday, 09/25/2007, 11:00 a.m.
A researcher who has been instrumental in raising awareness about global warming since the 1980s discusses what climatology research is revealing about our planet.
- James Hansen: lead climate scientist at NASA's Goddard Institute for Space Study. He is also currently an adjunct professor in the Department of Earth and Environmental Sciences at Columbia University and a member of the National Academy of Sciences.
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