Problem is, it's just another scientist with a theory, and yet more fuel for the typical 'confirmation bias' style tirades (can't call them debates - the rules of debating are that opposing sides at least listen to each other). It's an interesting discovery for sure, but it will be denied and poo poohed by Friends of The Earth and all that crazy bunch and we'll be no further forward.
I also do not believe it will change anything as far as carbon taxation is concerned either. That is so locked in now, it's a permanent fixture, more's the pity.
The final BUT is, that the earth IS warming, Does he have an equation for that?