Climate change is front and center in Copenhagen. World leaders arrive today for the U.N. Climate Change Conference, which runs through December 18.
The goal: outline programs to reduce greenhouse gas emissions. The world's biggest polluters, China and the U.S., have already announced plans to lower their carbon emissions.
For the next two weeks we’re going to answer your questions about climate change.
Leave a comment with your questions and then we’ll present the answers and break it all down in the CNN Newsroom, 11am – 1pm ET.