The following three links (ScienceDaily) offer a modern view of something commonly practiced long ago that has become "new knowledge" for us today.
This "new knowledge" is all about biochar!
Simpler Ways to Counter Global Warming Explained... (05/2007) is a scientific explanation of the process of producing bioenergy using pryolysis (low temperature burning without oxygen).
Both Ancient Soil Replenishment Technique... (12/2008) and From the Ancient Amazonian Indians... (01/2010) provide convincing evidence - evidence that remains in effect 500 years BEYOND the extinction of the tribes of the Amazon Basin - that biochar helped to transform some of the most infertile soils into some of the most productive.
They were some of our early conservationists.




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