Well it don't really matter how it ends. When it's over it's over.

Personally I think mankind will figure out what is happening and manage to pull out of it in time but I worry about third world countries ofsetting any efforts by the most developed nations to curtail global warming.

The natural rise in the cost of energy will cause conservation anyway.

I think we are not far enough into it yet to determine if it is natural or manmade. I say this because I remember claims of global cooling in the past. A large volcanic explosion or an asteroid strike could turn global warming into global cooling real quick and they have done so in the past.