Biophysical feedbacks between the Pleistocene megafauna extinction and climate: The first human‐induced global warming?

  title={Biophysical feedbacks between the Pleistocene megafauna extinction and climate: The first human‐induced global warming?},
  author={Christopher E. Doughty and Adam Wolf and Christopher B. Field},
  journal={Geophysical Research Letters},
[1] A large increase in Betula during a narrow 1000 year window, ∼13,800 years before present (YBP) in Alaska and Yukon corresponded in time with the extinction of mammoths and the arrival of humans. Pollen data indicate the increase in Betula during this time was widespread across Siberia and Beringia. We hypothesize that Betula increased due to a combination of a warming climate and reduced herbivory following the extinction of the Pleistocene mega herbivores. The rapid increase in Betula… 

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