agriculture and climate change

I met prof rob van haren of Kiemkracht on monday, at the stadsboerij organic farm. Rob advises the dutch government on how to use agriculture to prevent climate change. We discussed a number of ideas, including using lupins to provide protein, as a substitute for soy beans, saving a lot of co2 emissions used in soya import, and also improving soil fertility as it fixes nitrogen; and the use of biochar to sequester carbon in the soil. Biochar needs to be researched carefully, as there are potentially some serious negative consequences, and it should certainly not be brought into carbon trading schemes and used as an excuse to emit more fossil carbon. We were also shown around the farm, and it was explained to us how organic farming increases carbon in the soil