You are using an older browser version. Please use a supported version for the best MSN experience.

How to help the environment ahead of the UN Climate Action Summit

Next week the United Nation’s Climate Action Summit will take place in NYC. To continue our climate coverage, CBS News Climate Chnage Contributor sat down with Peter Demenocal, Dean of Science and climate scientist at Columbia University. He joined us to discuss how we can all help the planet.
image beaconimage beaconimage beacon