Amazon Rainforest younger TPT

What we think about the Amazon Rainforest may need some significant rethinking.

FTA: The new study has found evidence that in a few hundred years, the land may have radically switched from a smattering of wide savannas to the "timeless" rainforests of today. 

The scientists were studying what kind of crops the natives raised and how it impacted the rainforests.

FTA: Instead they came up with a different finding that the rainforest may not have been there then.

Study originally published in PNAS.
Environmental impact of geometric earthwork construction in pre-Columbian Amazonia

PNAS 2014 ; published ahead of printJuly 7, 2014,