Representative from nearly 200 countries are gathered in Poland for the U.N. conference on climate change. Elliot Diringer, of the Pew Center on Global Climate Change, shares the latest from the meeting. Also: researchers see new changes at the poles — from slippery ice sheets to mysterious gasses.
Elliot Diringer, vice president for international strategies, Pew Center on Global Climate Change, Arlington, Va.
Robin Bell, director, ADVANCE Program at the Earth Institute, PGI senior research scientist, Lamont-Doherty Earth Observatory of Columbia University, Palisades, N.Y.
Torben Christensen, professor, GeoBiosphere Science Centre, Lund University, Lund, Sweden