Start of Age of Man

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Geologist Dr Colin Waters of the British Geological Survey, explains why in the 1950s H bomb tests and burning oil started the Anthropocene, the age when human activity began to affect the our planet’s natural processes. (Image caption: Mushroom cloud rises after the Hydrogen Bomb explosion at Eniwetok Atoll in the Pacific, April 1st 1954 © Keystone/Getty Images)