There is an old argument for the existence of God: Believe, because if you are right you get the benefit of heaven. If you are wrong, you will be dead anyway and won't care.
In the present case, the logical argument is: Believe that peak oil and global warming are a left-wing conspiracy. If you are right, we get to continue our comfortable lifestyle. If you are wrong, we are all condemned to a miserable, Orwellian existence no matter what we do.

Actually that argument isn't that old; it was first stated by Blaise Pascal [1623-1662].