Abrupt tropical climate change: past and present.

  title={Abrupt tropical climate change: past and present.},
  author={Lonnie G. Thompson and Ellen Mosley-Thompson and Henry H. Brecher and Mary M. Davis and Blanca Le{\'o}n and Don Les and P. Lin and Tracy A. Mashiotta and Keith R. Mountain},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={103 28},
Three lines of evidence for abrupt tropical climate change, both past and present, are presented. First, annually and decadally averaged delta(18)O and net mass-balance histories for the last 400 and 2,000 yr, respectively, demonstrate that the current warming at high elevations in the mid- to low latitudes is unprecedented for at least the last 2 millennia. Second, the continuing retreat of most mid- to low-latitude glaciers, many having persisted for thousands of years, signals a recent and… CONTINUE READING
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