CSPAN2 Key Capitol Hill Hearings December 31, 2014
But it didnt go up like that because of until the 1960s we were putting some into the air and it was called sulfate. You can hear the smokestacks and the acid rain and the ecological problems that we were sorting out and that is what we were doing. What happened before then is they were to some extent indeed largely canceling each other out. So, the warning that we are actually seeing is because they cleaned up the smokestacks and its now accelerated quite rapidly up to the much steeper so i thought about Climate Change, thats what im actually speaking about. With regards to the extremes, ther...
Source: archive.org