C02 is a minor gshneeoure gas, by far the largest being Water Vapor, and that the long term effect of the hydrologic cycle was to moderate changes....yet changes do occur, always have always will:The Sun is such an immense source of energy that minor variations for it represent significant changes for the planets.Reports are that Mars is also warming, Ms T, our resident lesbian Wit at the Bar suggests this is because of the wanton plundering of the Martian Environment by our rovers!My favorite approach is that in the book:"Unstopable Global Warming"They simply report on the plentiful written historical records showing that radical warming and cooling repeatedly occured long before the massive burning of fossil fuels.Examples like the farming in large areas of Greenland.(The residents there were almost a foot taller in times of plenty then they were at the end of the last cooling cycle.)French laws restricting the importation of British Wines.(the more things change...)Wines from grapes grown on British soil where such cultivation now would be impossible.Ample evidence to refute Gore's Convenient Lies.