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The Earth is about to begin a steep drop in global temperatures off its present global temperature plateau. This plateau has been caused by the absence of growth in global temperatures for 18 years, the start of global cooling in the atmosphere and the oceans, and the end of a short period of moderate solar heating from an unusually active secondary peak in solar cycle #24.

Average global atmospheric and oceanic temperatures will drop significantly beginning between 2015 and 2016 and will continue with only temporary reversals until they stabilize during a long cold temperature base lasting most of the 2030's and 2040's. The bottom of the next global cold climate caused by a "solar hibernation" (a pronounced reduction in warming energy coming from the Sun) is expected to be reached by the year 2031.

The predicted temperature decline will continue for the next fifteen years and will likely be the steepest ever recorded in human history, discounting past short-duration volcanic events.

Global average temperatures during the 2030's will reach a level of at least 1.5° C lower.