john: thank you, gavin schmidt. i appreciate you coming and i would love to have you come in.ow let's bring in roy spencer to reply. or stay if you would like. >> i'm not interested, but thank you very much. john: dr. spencer, can you -- so what do you say to what he says? >> i agree with some of what he says. i speak out because i believe forcing unrealistic, expensive energy solutions upon the poor is going to kill people. we know that it kills. i would rather se people from poverty than theoretically save people in the future. john: you have said carbon monoxide can make the planet greener? speaker that is pretty much understood. there are hundreds of papers that says increasing co2 is good for basically all the plants they studied, even crops like corn. my long-term prediction is eventually we will realize more co2 in the atmosphere is actually a good thing and considering the fact it is necessary for life on earth to have co2 in the atmosphere, it is amazing how little there is in the atmosphere. john: the perception among my friends here in new york if you are this weird

john: thank you, gavin schmidt. i appreciate you coming and i would love to have you come in. in roy spencer to reply. or stay if you would like. >> i'm not interested, but thank you very much. john: dr. spencer, can you -- so what do you say to what he says? >> i agree with some of what he says. i speak out because i believe forcing unrealistic, expensive energy solutions upon the poor is going to kill people. we know that it kills. i would rather save people from poverty than theoretically save people in the future. john: you have said carbon monoxide can make the planet greener? speaker that is pretty much understood. there are hundreds of papers that says increasing co2 is good for basically all the plants they studied, even crops li corn. my long-term prediction is eventually we will realize more co2 in the atmosphere is actually a good thing and considering the fact it is necessary for life on earth to have co2 in the atmosphere, it is amazing how little there is in the atmosphere. john: the perception among my friends here in new york if you are this weird outliner, and

so, gets lost you would take a seat over there, let's welcome nasa scientist gavin schmidt.n. you work -- >> and national company in new york city. john: why is he wrong? >> you said climate change has changed because we had had volcanoes,he sun has changed, there has been changes in the earth's paround the sun caused ice ages to come and go. all of those things are totally true. look at volcanoes, we have looked at the orbit, -- john: this time it is not those things. >> ght. we have increased the amount of greenhouse gases in the atmosphere. more than doubled the amount of butane. and the signatures of those changes are very clear althe way through the system. john: assuming this is true, why is it necessarily a problem? warmer might be better. more people die from cold then warmth. >> we have built an agricultural system and cities and evything we do based on assumptions that the climate is not going to change. the fact that we have so much infrastructure near the shore is cause we didn't expect the sea level to rise. the damage from hurricane sandy was increased because