Regarding your assertion about global cooling.  I would ask you to consider this comment from a scientist in the much respected Scientific American magazine whose whole issue was devoted to AGW.  “Global warming should be unmistakable within a decade or two.  Prompt emission cuts could slow the build up of heat trapping gases and limit this risky planet wide experiment.” Stephen H. Schneider. Sci Amer. Special Issue: Managing Planet Earth. Sept 1989    I invite you to dig up the issue.  You'll find it enlightening,