"After appropriate management changes land can remove CO2 from the air and sequester it in soil or above-ground biomass. Carbon can also be sequestered by forming biomass into human artefacts and preserving it, preventing its carbon from being returned to the atmosphere."
"In the scenario a healthy diet is provided for the population on only 29% of the land currently used for food production, supplemented by low-carbon imports. It provides a much higher degree of food security than at present." Summary from zerocarbonbritain2030 on landuse ans agriculture.