https://mobile.nytimes.com/2017/12/02/opinion/sunday/soil-power-the-dirty-way-to-a-green-planet.html?referer=http://m.facebook.com
https://www.earth-syst-dynam.net/8/577/2017/esd-8-577-2017.pdf
Willie Durham regenerative agriculture
http://neiwpcc.org/nationalnpsold/documents/presentations/Brandon%20Smith_Session3.pdf
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