Carbon farming is a broad set of agricultural practices across a variety of farm types that result in increased storage of atmospheric carbon in the soil. Many of these practices are common in organic farming, regenerative agriculture, permaculture, and other approaches to food production. When plants photosynthesize, they remove carbon dioxide from the atmosphere and store it. When they die, this carbon is either released back into the atmosphere or it is stored for long periods of time in the soil. Many conventional agriculture practices result in the release of carbon, while practices classified under carbon farming aim to do the opposite.
https://www.greenamerica.org/food-climate/what-carbon-farming