CNN and YouTube host a one-hour debate on December 15 about climate change challenge . Debate will air live on CNN.com , and later on CNN International . The event is sponsored by the Climate Reality Project (CRP), which has been working to raise awareness of global warming since 2007. Have your say at COP15 -- Join the CNN/YouTube debate . World leaders are seeking a global agreement to reduce carbon emissions .
CNN and YouTube host a one-hour debate on December 15 about climate change challenge . Debate will air live on CNN.com , and later on CNN International . The event is sponsored by the Climate Reality Project (CRP), which has been working to raise awareness of global warming since 2007. World leaders are seeking a global agreement to reduce carbon emissions .