Congratulations Al Gore.

The Sun shines more energy in an hour on us than we generate as a species in a year so human heat production is not yet much of a factor in climate (but this could change if we keep doubling it). If greenhouse gases cause heating which gets reinforced by lower albedo due to the ice caps melting that would be news. Fortunately, heat radiation goes up as the fourth power of temperature according to the Stephan-Boltzmann Law. So runaway greenhouse is not in the cards.

Let’s tax some coal; that would be cool. Cutting back $50 worth of gasoline use cuts back one fill up. Cutting back $50 worth of coal cuts back two tons. The Party that does it probably won’t win West Virginia in the next election.