administrator geena mccarthy. >> would you acknowledge that over the last 18 years, that the increaseerature has been very little, and that it is well below most of the environmental models that showed how fast texture would increase. >> no, i would not agree with that. a 1 degree temperature is significant. >> carbon pollution is co2, it's not a pollutant. it's a plant food. it doesn't harm anyone, except temperature increases. >>> that senator is not alone. >> as we hear, 2014 has been the warmest year on record. do you know what this is? it's a snowball. and that is from outside here. so it's very, very cold out. >> i'm not a scientist. i'm not qualified to debate the science over climate change. >> i'm not a scientist, and i don't claim to be. >> i'm not a scientist either. but you know what, i know a lot of really good scientists, at n.a.s.a., and noah, and at our major universities. >>> topping obama's list of experts is dr john halled ron director of the office of sign and technologies, lindsay moran office. >> what we are facing is human-driven changes in the global climate th