Very interesting, and I am glad to see this type of farming returning.
But I feel this isn't really new, but a return to a way of farming that predates the industrial revolution and its introduction of synthetic ammonia. Prior to the synthesis of ammonia, farmer's routinely added manure to soils, and composted vegetation back into their soils to improve them.
I hesitate to point out that many gardiner's have been doing this for years, also.
I till my leaves and grass clippings from my yard into my garden each winter, add a ton of horse manure, and use no pesticides in my garden. What started as a terrible clay topsoil 30 years ago, from an old cornfield, is now a dark black organic soil full of earthworms.
It is kind of funny that returning carbon to the soil is such a "new idea". Farmers have been using cow and sheep manure as fertilizer for milleniia.
There are several TED talks about using animals and their solid waste to return carbon and nitrogen to the soil.
Allan Savory has an excellent one here from 2013
Not every one agrees with Mr Savory though - since the animal carcasses are harvested for food, and are not returned to the soils as wild carcasses do: hence, reducing the carbon and nitrogen compounds returned to the soil by the rotting carcasses of animals.
It is alarming when one realizes the majority of land surfaces on the globe are tending toward desertification, whether one accepts all of Mr Savory's hypotheses or not.
I am certain that bare soil absorbs more warming than a soil covered with green leaves. Walking barefoot will quickly demonstrate that sunlit grass is much much cooler than bare dry compacted dirt or cement.....