In Threshold, Dr. Carla Connors takes a 2-yr sabbatical from her job as a climate scientist to learn from ethnologists at the Mission Garden in Tucson who are growing heirloom seeds to test for viability in new climate conditions, while demonstrating many previous cultures’ farming practices in their Timeline Garden.
Carla investigates the potential of plants to sequester carbon from the atmosphere and deposit it into the soil. While this is a normal activity of some kinds of microbes in the plants we call legumes (barley, soy, clover), she wants to know if the ways farmers planted, grew, and harvested crops actually may be important clues to how farmers might help stem global warming.
Its called CARBON FARMING. See this article from Modern Farmer, “Carbon Farming: Hope for a Hot Planet” by Brian Barth, March 25 2016.
Scientists now believe carbon framing could become an important and beneficial tool in fighting the rise of carbon dioxide in the air and could potentially reverse it while producing healthier food and enriching top soil.