The reality is, as you point out, the very complexity of the issue.  I support cautious use of our fossil fuel resources regardless of whether it causes global warming or not.  For me stewardship is just plain common sense.  Again, it seems that the use of fossil fuel does contribute to climate change, but I cannot say that I or anyone else knows just how much.  That really is the question, not if, but how much.  I guess your argument is lost on me.