all. it will evolve. the scientific community has a responsibility to explain itself. >> is there a difference between evolution and global warming. global warming has implicatio implications for trillions of dollars of tax money and changing the way that america lives. are you willing to engage in actives that could be ruinous if misspent on basis of a theory that you say the case not closed? >> i respect the science in temples of the tools i would -- in terms of the tools to address it, if we are reading one body of science here and chinese read a different body there and inians are yet again reading something different, the largest emitters of the world go from different benchmarks. how can we unilaterally disarm in the country and impose something in the way of cost for job creators when the largest emitters in the world reading from a different text?