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fromNature
2 days agoIce core reveals longest-ever continuous record of Earth's climate
A 1.2-million-year Antarctic ice core links atmospheric CO2 changes to global temperature shifts across repeated climate cycles.
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fromwww.scientificamerican.com
6 days agoPoop, stomach oil and ostrich eggshells keep records of Earth's ancient climate
The solidified oil is an indirect record, or proxy, of the past that scientists rely on because we don't have a time machine. Researchers trying to understand Earth's climate and ecosystems need to trace rainfall, ice coverage, fire and other factors over thousands or millions of years—far longer than human records.
Science
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