All the conversation focuses on the next 50 years, because we don't care about people other than ourselves and our generation. I understand. I'm not going to turn the AC off because of something 300 years from now. Having no grandchildren, I don't even have a genetic imperative. Tough luck, folks. The problem is that CO2 is rising to extinction-level event heights, and doing it faster than ever before.Note: The middle road is not going to happen. We will continue burning fuels, perhaps at a slower rate, until they are gone. In 10 million years, natural processes will sequester the...