. >> and charles darwin's book, "origin of species," he says that he knows evolution is true.on't persuade the existing bunch of naturalists and scientists, just because they have left their whole career with another paradigm. he is looking forward to the next generation who will look at this objectively. you are not looking at this objectively. >> tucker: i think i am more than you. maybe because i know less then you on this subject. i know, religious behavior when i see it. and i think that anybody who it is threatened by questions is not engaging in science, he is engaging in theology. >> you are threatened by solvinb the problem. >> tucker: not in the slightest. >> use of the paris agreement is somehow no good. a solution that every single country in the world, 190 nations, unanimously agreed. only president trump pulled out -- >> tucker: you are not a are political person, because -- >> i'm a scientist by trade -- >> tucker: are masking a sincere question. i hold on. why is it okay -- a question i'm asking. i shouldn't be denounced as a denier that i am doing so, why is i