Carbon Tax, not a VAT

I agree with Matt Yglesias that if there is gonna be a consumption tax it should be a carbon tax not a VAT. I think part of the reason that some are still enamored with a VAT is that it can raise a ton of money, probably more than a carbon tax. That said, a carbon tax should generate substantial revenues and also would more efficiently curb carbon emissions while not sacrificing any ground on efficiency to the VAT.