Much humid air coming off the Gulf of Mexico meeting cool air from the north is causing inordinate rainfall in the central U. S. this summer, which Al Gore says is because of manmade climate change, global warming the claim, but the rainclouds cause cooler temps of course, so if the moisture-in-the air coming off the Gulf is in fact greater than usual this summer, it’s due to lack of high pressure systems which usually dominate the middle of the U. S. in summertime to keep most of the humid air offshore for dry hot summers in the interior. No mention is made concerning the sea surface temperatures which according to Al should be greater by his imagined global warming, but if there really has been warming of the ocean (by temporary increase of solar radiation or by increased seafloor volcanism), the greater cloud cover resulting just cools the atmosphere back down, the negative feedback mechanism in the hydrologic cycle which Al and the others conveniently ignore.
