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Collapse of Mayan Civilization

the Mayans over-exploited their environment early      web

webhttps://phys.org/news/2019-10-ancient-maya-canals-fields-early.html
authorUniversity of Texas at Austin
publicationphys.org
date2019-10-07

Documents:
large ancient Maya wetland fields revealed
webTimothy Beach, Sheryl Luzzadde...PNAS2019-10-07

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