I have read that tilling was invested in old Egypt in order to dry the wet soil after the flooding of the Nile. Modern farming does not need drying fields but it still does till the fields. One side effect is also that lots of carbon bound in the topsoil is released into the atmosphere. Might even be that farming produces more CO2 than many other human activities. It’s a complex picture for sure.
Gabe Brown is in such demand as a speaker that for every invitation he accepts, he turns down 10 more. At conferences, like the one held here at a Best Western hotel recently, people line up to seek his advice. “The greatest roadblock to solving a problem is the human mind,” he tells audiences.