Via Official Google Blog, you can connect with the world leaders on climate debate.
[Starting on December 3, 2009], 192 countries will participate in the Climate Change Conference in Copenhagen — the first step in setting new international commitments for carbon reduction.
You can submit and vote on questions to ask world climate leaders during a televised town hall on CNN. With Google Moderator on YouTube for the first time, you can view, add and vote on video or text questions in one spot.
Questions will be translated into numerous languages using the Google Language API. Voting and submissions will be accepted until December 14. You can also track the conversation and vote on new questions.