We humans are on track to more than double the atmospheric CO2 concentration that existed for the few millennia before the industrial revolution. If we could cause just a doubling and then hold the CO2 level constant for the next thousand years, we very likely would see: A.The Earth would cool and cool, eventually causing a new ice age. B.The Earth would warm many tens of degrees, and then the temperature would stabilize at that new, warmer level. C. The Earth would cool a few degrees, and then the temperature would stabilize at that new, cooler level. D.The Earth would warm a few degrees, and then the temperature would stabilize at that new,warmer level. E.The Earth’s temperature would remain the same as it was before the start of the industrial revolution