Just consider ice age patterns:
Or the changing patterns of the tilt of the earth:
But for the moment, let's forget about the physical science variables and think about the dismal science variables (i.e., economics). Recently two economists (David Henderson and Ian Castles) have criticized the United Nations' Intergovernmental Panel on Climate Change (IPCC). Let's let Henderson say it:
· For the base year of 1990 it compares output across countries on the basis of market exchange rates (MERs). These comparisons greatly overstate the differences in GDP per head between developing regions and OECD member countries.Henderson
· It builds in, for reasons that are open to question, rapid convergence in GDP per head between developing regions and OECD member countries. By thus assuming the substantial closure of a greatly overstated initial gap, it arrives at projections of output and GDP per head for developing regions which are higher than they would have been if the 1990 starting point had been correct, and high by comparison with other projections
Not only are there significant questions about the enormous number of variables and measurements needed to ascertain global warming patterns, but even the economics are questionable. According to Henderson and Castle the numbers used suggest unprecedented economic development in some countries and economic development of such a degree that the IPCC would be essentially assuming that by the year 2100 North Korea will have a higher GDP than the US. As Wayne Campbell once said, "Yeah, and monkeys might fly out of my butt." The IPCC has not accepted their recommendations.