Getting back to the vid , i fowarded it to my brother a national parks advisor in Sudan , he told me that he had visited and park in Kenya set up by this proffesor , said it was doing really well .
So lets burn less fossel fuel and eat more beef/ lamb 
I also forwarded the vid to a few people, including a couple of farmers...their reaction was basically "we already knew that" - but also refuted his claims that you can feed a large herd of stock on a bare patch of dirt. Stock need feed & water to create poo/wee - he dodges this question with a very clumsy answer, otherwise all good.
This system is also used domestically here already with chooks (permaculture). I visited an 'Ecolodge' a few years back that practiced this with very successful results. I guess the good doctor is simply discussing this system but on a large-scale;
failsafefarm.blogspot.com/2010/10/permaculture-veggie-patch-plan.html
