Like so many of his ilk, he sees the atmosphere as his playground where computer models allow him to recreate the earth in his image and to his satisfaction all the while laying the blame for its present sorry state (as he views it) at the feet of the greedy capitalists and their bought-and-paid-for politicians.
Some of his ideas are so far out in left field as to be ludicrous on their face such as this tidbit gleaned from straightdope.com:
Ralph Cicerone, a professor of geosciences at the University of California at Irvine, has suggested spraying 50,000 tons of propane or ethane over the South Pole early each winter. The resultant chemical reaction, he wrote in a 1991 article in Science magazine, would temporarily neutralize the ozone hole. It would also cost a zillion bucks. But if things keep up like they have, we may yet have to do it.
Sounds like a candidate for the Nobel Peace Prize.
I believe I have also read that more CFCs are emitted in the atmosphere by volcanic activity than anything mankind could ever do.