Capillary water and how it can help to combat desertification - The importance of providing shade in desert greening. Explain soil, water, plant root and fungi relationship and made me understand why tiling is bad.
Tom Reed and Ben Peterson chat about gasification, methanol, biochar and torrefaction -Very interesting of mentioning biochar. I started looking into wood gas because I was interested in Biochar and was not looking for alternative energy source. But this turns out to be a multiple use of the some installation....very cool.