Actually,,while it is cold here,,,from the Rockies westward there is record heat right now. Last year,,taking the entire US into account,,there were twice as many record Highs as record lows. Since 2000, there have been more than twice as many record high temps recorded as record lows. The warming earth doesn't mean there will be no more cold. Infact,,Temp Extremes,are predicted to beome more pronounced. Whether you believe in,"Global Warming",,"Climate Change",,or whatever,,the fact remains,,we humans produce pollution. If you don't think so,,just put your nose down near your vehicle exhaust,,or look at the road sides in the summer,,the once white snow banks in the winter. We are dirty,,,,and anything we can afford to do to clean up our act is a good thing.