This is a big deal. Is it perfect? No, far from it. Politics is -- as the famous saying goes -- the art of the possible. This is what was possible today. If you

This is a big deal. Is it perfect? No, far from it. Politics is -- as the famous saying goes -- the art of the possible. This is what was possible today. If you've been following closely, then you know we almost had no deal. My hope is that the emissions targets (low by what the scientific community wants to see) are tough enough that they will mandate significant investments in new technology. When clean tech becomes profitable (optimistically cheaper via subsidies), then it may become easier to sell the world on ratcheting-up the targets before we run out of time. As others have mentioned, I will be watching the market reactions with cautious optimism.