. >> switching gears climate change with steve koonin. an interesting, steve koonin i have not seen you in a long time, right way for trump to ditch paris aagreement. can go i back, 12 trillion dollar is how much we spent last decade or two, i can't remember it was your number or number. >> from the same source. larry: greenhouse gas emissions continue to rise. >> of course, the rest of the world needs energy, and they are burning cold to -- coal to get it. larry: why do we continue this, i love you said, based on some fear of a vague climate co catastrophe u.s. wants to spend more money and continue into it, that is what it is, you have proven that. it a sort of vague climate catastrophe that never seems to happen. >> i keep asking the people who are catastrophists what do you thinking happen, you can't get a straight answer. some people say, more drought, more floods, sea level, heat. you can't get a straight answer. >> then you go on to say, we should not subsidize or mandate the deployment of immature and ineffective technologies, inc