Agroforestry is the growing of crops and trees together. Mutual benefits of crops and trees can increase crop yields and food security. Agroforestry is also a solution for climate change because agroforestry stores more carbon into the soil, and, in turn, decrease atmospheric CO2, a greenhouse gas. The review article by Lorenz and Lal analyses the actual knowledge on the potential of agroforestry to store carbon in soils
Expansion of agricultural land use has increased emission of greenhouse gases, exacerbating climatic changes. Most agricultural soils have lost a large portion of their organic carbon, becoming a source of atmospheric CO2. In addition, agricultural soils can also be a major source of nitrous oxide and methane greenhouse gases. Stavi and Lal show that agroforestry and soil application of biochar can efficiently sequester large amounts of carbon over the long-run. In addition, these practices also increase agronomic productivity and support a range of ecosystem services. Payments to farmers and land managers for sequestrating carbon and improving ecosystem services is an important strategy for promoting the adoption of such practices.