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TeachMeFinance.com - explain climatic optimum climatic optimum The term 'climatic optimum' as it applies to the area of carbon dioxide can be defined as ' The period in history from about 5000 to about 2500 B.C. during which surface air temperatures were warmer than at present in nearly all regions of the world. In the Arctic region, the temperature rose many degrees C, and in temperate regions, the increase was 1.0 degree - 1.7 degrees C. In this period, glaciers and ice sheets receded greatly, and the melt-water raised mean sea level by about 3 meters'.
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