I haven't thought about this for very long, but it seems to me that with a little bit of work and some creativity, global warming can be a pretty good thing for us.   The sun, essentially acts as a gigantic power plant that transmits energy.  The earth receives some of this energy with some of it being absorbed and some of it being emitted away (with the emitted energy being gone).  When you absorb more than you emit, you get global warming, and the other way around you get glo...