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A reader asks if there is global warming, how can the record mountain snowpack be explained. The answer is simple. The burning of fossil fuels by humans has increased atmospheric greenhouse gases rapidly over the past decade and the trend is for the increases to continue at a growing rate. One effect has been raising the temperature of the world’s oceans; most dramatically on the Arctic Ocean where summer ice is disappearing. The higher ocean temperatures produce more moisture in the atmosphere, which in turn, falls as precipitation. That is why record heavy rains have been causing major floods. Snow is a form of precipitation and has increased for the same reason. It is good for ski resorts and filling reservoirs, but precipitation will increase with further ocean temperature rises.Dick Sugg,Arvada
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