Regenerative agriculture is a conservation and rehabilitation approach to food and farming systems. Regenerative agriculture focuses on topsoil regeneration, increasing biodiversity, improving the water cycle, enhancing ecosystem services, supporting biosequestration, increasing resilience to climate change, and strengthening the health and vitality of farm soil.

Regenerative agriculture is not a specific practice itself. Rather, proponents of regenerative agriculture use a variety of sustainable agriculture techniques in combination. Practices include recycling as much farm waste as possible and adding composted material from sources outside the farm. Regenerative agriculture on small farms and gardens is often based on philosophies like permaculture, agroecology, agroforestry, restoration ecology, keyline design, and holistic management. Large farms tend to be less philosophy driven and often use "no-till" and/or "reduced till" practices.

As soil health improves, input requirements may decrease, and crop yields may increase as soils are more resilient against extreme weather and harbor fewer pests and pathogens.

Most plans to mitigate climate change focus on "reducing greenhouse gas emissions." Regenerative agriculture, i.e. the capture of atmospheric carbon dioxide by growing plants that move that carbon dioxide into the soil, is pretty nearly the only currently-functioning technology available for drawing down greenhouse gases that are already in the atmosphere, mostly through the cultivation and nurturing of forests and permanent perennial pastures and grasslands.