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Each prediction is based upon a set of assumptions. it is an extrapolation of known data and perceived trends. Natural systems tend to self regulate. People tend to make substitutions when one product no longer is viable. I have lived on the 'eve of destruction' my whole life. Without a definite Pareto diagram of the factors influencing weather and climate or per-capital resource production there is little certainty of making precise predictions more than five years into the future. We can take prudent steps to minimize waste heat and conserve farm and forest land. I suspect these are root issues.
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