(Bruce Melton, Truthout, 21 February 2013)
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Dry periods, which we normally refer to as drought times today, would be superimposed on top of the megadrought extremeness. . . . The results of the new research are critically deserving of an alarmist tone. That we could slip into profound continuous drought so soon is certainly a surprise to most of us, to say the least. The typical consensus opinion of unrestrained climate pollution impacts by the year 2100 only tells us that permanent drought will come to many parts of the world and, basically, that dry areas could become drier. The news that we could be experiencing permanent drought on the scale of megadrought proportions – beginning in only eight years – should be considered a global threat of the highest order. . . . The new models have more grid squares (higher resolution) in that they can “see” a smaller piece of the earth compared to the old models. The old models took forever to run on supercomputers, and so do the new ones, but we can see smaller areas and smaller scale climate processes are better represented now. The new models also include volcanoes, changes in the sun’s strength and more complex interactions between clouds and pollutants like nitrous oxides and sulfur dioxides (both manmade and natural), and their results agree better with observations of our past climate. . . . The results of the new scenarios and most current modeling (as compared to the old scenarios and models) are that warming is greater, drying in dry areas is greater and increasing wetness in wet areas increases further.