Exploring abrupt climate change induced by comets and asteroids during human history

September 4, 2012

Restored from the library fire 1/11/20
  Isn’t it astonishing that all these secrets have been preserved for so many years just so we could discover them!! — Wilbur Wright, June, 1903   No one has yet invented an explanation which will fully account for all the facts observed – Douglas Johnson, regarding Carolina bays, 1942   The Geological Society of America…
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