report says heavy taxes on carbon dioxide emissions would beed need to help idavo catastrophe. is that politically feasible? >> $27,000 is notsi fee. what it was highlighting is that if your tnlyol is a carbon price it might need to be not $50 or$100 a ton, but several hundred. places like california and europe have a number of other mechanisms. in california we have requirements for clean electricity and buildings. we don't express it. what it is saying is if you want take away all the other rules you would need to price that high. so wha they are saying is the other way around. what they are saying is a ixture of a reasonable carbon price and the carbon price that we give some back tor p people, plus all of these targes, that is a strategy that would get us on pace to meet this target. what it kind of gets some conservatives are proposing which is the idea that you tax carbon emissions and then you give some of that money from the taxes back to the american public. is that a good idea? >> i think this is a great idea. actually, formerst secretary of e james baker on the repub