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stellarelli stellarelli
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6 years ago
What information is available that can allow people to give quantitative measures of climate in earlier times? Give examples.
 
  What will be an ideal response?
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wrote...
6 years ago
There are many avenues of evidence. In historical times, we have human
descriptions in diaries and books. For earlier times, there is evidence from ice cores, from
pollen buried in lake sediments, from oxygen isotope ratios in the shells of diatoms on the
ocean floor, etc.
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