Often times, history repeats itself. This is true in life, in war, and in the Earth’s cycle. In the 1970’s many environmentalists were concerned about “global cooling” because of manmade atmospheric pollution blocking out the sun, which would freeze the earth, kill all life forms, and make Earth completely uninhabitable. Since about 1940, the Earth did in fact appear to be cooling but then in the 1980’s and the 1990’s temperatures began to increase which created the theory of “global warming” (Geo Craft). According to The Cooling World written by Peter Gwynne in 1975, “Climatologists are pessimistic that political leaders will take any positive action to compensate for the climatic change, or even to allay its effects. They concede that some of the more spectacular solutions proposed, such as melting the Arctic ice cap by covering it with black soot or diverting arctic rivers, might create problems far greater than those they solve” (Gwynne). Obviously, this is part of Earth’s cycle, if it was not for this cycle, well then we would still be living in the ice age because the glaciers would have never melted to begin with. It’s a pattern. A pattern that we must discover and learn because without it, people will constantly be living in fear, under the impression that if something is not done, the world will end… However, as stated in his speech to the senate on July 28th, 2003 by James M. Inhoffe, “With all of the hysteria, all of the fear, all of the phony science, could it be that man-made global warming is the greatest hoax ever perpetrated on the American people? It sure sounds like it (Notable Quotes ).” Periods of Earth warming and cooling occur in cycles. This is well understood, as is the fact that small-scale cycles of about 40 years exist within larger-scale cycles of 400 years, which in turn exist inside still larger scale cycles of 20,000 years, and so on