European colonization of the Americas decreased the population by 10 percent of the world population and caused global cooling.
The global cooling is the consequence of the changes in oceanic circulation and atmospheric carbon dioxide that are probably influencing each other and possibly initiated by tectonic processes.
European colonization of the Americas decreased the population by 10 percent of the world population and caused global cooling.
Thus, the population of the Americans decreased by 10% after contact with the Europe.
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