Ancient poop helps show climate change contributed to fall of Cahokia - Phys.org

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Ancient poop helps show climate change contributed to fall of Cahokia (https://phys.org/news/2019-02-ancient-poop-climate-contributed-fall.html) Phys.orgA new study shows climate change may have contributed to the decline of Cahokia, a famed prehistoric city near present-day St. Louis. And it involves ancient ...
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