A climate scientist who works with the Union of Concerned Scientists. She has done climate research at the University of Arizona, Columbia University, and the Lawrence Livermore Laboratory, and was/is leading "the UCS's climate science education work aimed at strengthening support for strong federal climate legislation and sound U.S. climate policies." She shows up a lot in American media.
Sting rays and global warming
Here she is with a surprisingly receptive Bill O'Reilly discussing sting ray attacks and their relationship to Global Warming.
1. She was a participant in IQ2 US Debate (April 2009). It's really entertaining. Click here to check it out.