Ancient farmers spared us from glaciers but
profoundly changed Earth's climate
University of Wisconsin-Madison, September 6, 2018
https://www.sciencedaily.com/releases/2018/09/180906141507.htm
If You Hate Ice Ages, Thank a Farmer
Chopping down forests and irrigating rice
paddies boosted greenhouse gases enough
to prevent the onset of a new ice age
Ronald Bailey|Sep. 10, 2018 2:05 pm
https://reason.com/blog/2018/09/10/thank-a-farmer-if-you-hate-ice-ages
The papers are:
Vavrus, S.J., He, F., Kutzbach, J.E., Ruddiman,