Unbroken Ground: Revolutions Start at the Bottom
Directed by Chris Malloy (2016)
Unbroken Ground is about three revolutionary innovations in food production (regenerative agriculture, regenerating grazing and restorative fishing) aimed at increasing long term food security by working with natural processes.
Regenerative agriculture is aimed at restoring and preserving topsoil by moving away from corporate monoculture of annual plants. The goal is to support farmers in raising a diversity of perennial staple crops.
At present annual grains (mainly wheat) comprise 70% of the global diet. Plowing topsoil under every year rapidly degrades soil fertility by killing the delicate microorganisms plants depend on for basic nutrients. Dedicating fields to a single monoculture annual hasten this process, necessitating the increasing use of chemical fertilizers and toxic herbicides and pesticides.
The filmmakers visit a group of scientists attempting to develop a perennial variety of wheat by cross breeding it with perennial grasses.
The regenerative grazing movement is restoring the American Great Plains by reintroducing buffalo, the indigenous animals who co-evolved with the native grasses that grow there. Buffalo are 100% grass fed but unlike beef cattle, they don’t kill the grass by eating it down to ground level.
Studies show the animals also significantly increase CO2 sequestration (capture and storage – see The Soil Solution to Climate Change) in areas where they have been introduced.
Restorative fishing uses ancient Native American fishing techniques to enable fishermen to catch their target fish and release non-targeted species back to the ocean unharmed. The process involves creating an artificial reef with nets and plastic strips. The false reef fools the fish into swimming more shallowly, enabling easy capture without harming their gills.