was, was mr. trump right to get out of this particular deal? >> yes. fundamentally, it would have done almost nothing for climate, and it would have been incredibly costly. is so getting -- so getting out doesn't do anything bad, but it saves us a lot of money. so, absolutely. but we do need another way to tackle global warming. greg: yeah, and that's -- i find your -- you have solutions. i've read a lott of your stuff, and i edger you if -- urge you, read up on it. go to prager-u. you've got a little segment up there that explains this stuff. you're about prioritizing. >> exactly. greg: you look and you say if we took all this money, this is what we could do x we could solve almost every world problem. >> i mean, there's a number of things we need to recognize. first, you know, we're going to spend on paris about a trillion to $2 trillion a year for the rest of the century. and if we did that, if we did everything we promised in paris, we would reduce temperatures by