The world can draw down all of our Carbon emissions if agriculture fully embraced regenerative agriculture. Soils must be regularly monitored by probing  carbon levels because the more that is in the soil the less is in the atmosphere.  These themes are promoted by the Chico Center for Regenerative Agriculture and Resilient Systems to reduce greenhouse gasses, restore soil resiliency, increase the sustainability of farms and ranches, and address food and water insecurity.  The co founder of the Center, Dr. Tim Tim LaSalle was the first CEO of Rodale Institute, Executive Director of the Allan Savory Center for Holistic Management and researcher/adviser with the Howard Buffett Foundation in Africa on soils and food security for smallholder farmers.  Tim is Professor Emeritus of Cal Poly and former President/CEO of the California Ag Leadership Program.  https://www.csuchico.edu/regenerativeagriculture/index.shtml