How about let's talk about the elephant in the room, population growth. When we start bringing down the number of people on the planet (thus hopefully also lessening consumption) we might have a chance to not fry to a crisp as quickly.  Nothing else is really going to do the trick - I know, I wish windmills and solar energy would save us - but we have to lessen the number of us, there's just no way around that.  I wish that was the main conversation we were having right now. We don't have a lot of time left to figure out a solution, and one that leaves human population growth out of the conversation isn't going to have the impact that we could have by lowering our numbers. 

Celebrate childlessness and small families. Albert Kaufman