https://www.youtube.com/watch?v=0Os-ujelkgw
https://www.youtube.com/watch?v=-YS8I6AZRfg
Tuesday, June 10, 2014
BioChar Terra Preta Doc
Mark told us about this great doc on Terra Preta biochar made by ancient Amazonian tribes. The first link is the one he told us about, the second one covers the same topic in a slightly different angle. Very interesting.
https://www.youtube.com/watch?v=0Os-ujelkgw
https://www.youtube.com/watch?v=-YS8I6AZRfg
https://www.youtube.com/watch?v=0Os-ujelkgw
https://www.youtube.com/watch?v=-YS8I6AZRfg
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