News Main Animals Archaeology Dinosaurs Earth History Human Animal Space Tech   Getty Images |   Empires Fall, Forests Rise In the 16th century, the diseases Europeans brought to the New World decimated native peoples. With no natural defense against smallpox, yellow fever, and a host of exotic new pathogens, 90 percent of the population was dead by 1600. The reforestation that came next may have ushered in one of the first instances of human-induced climate change, helping cause the Little Ice Age. | Discovery News Video   « back to article

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