Carbon sequestration is the process through which agricultural and forestry practices remove carbon dioxide (CO₂) from the atmosphere. The term “sinks” is also used to describe agricultural and forestry lands that absorb CO₂, the most important global warming gas emitted by human activities. Agricultural and forestry practices can also release CO₂ and other greenhouse gases to the atmosphere.

Sequestration activities can help prevent global climate change by enhancing carbon storage in trees and soils, preserving existing tree and soil carbon, and by reducing emissions of CO₂, methane (CH₄) and nitrous oxide (N₂O). For more information on the science, emissions, and reduction opportunities for these and other non-CO₂ gases, please visit our non-CO₂ gases page.

This Web site provides information on the following, and more:

• Frequently asked questions (FAQ) about carbon sequestration

• Agricultural & forestry practices that sequester carbon and reduce other greenhouse gases

• Basic science background

• U.S. national analysis on current sequestration rates, and the potential for additional sequestration and greenhouse gas reductions in agriculture and forestry

• Project analysis to estimate the climate benefits of agricultural and forestry projects

• International sequestration opportunities

• Environmental co-benefits of sequestration practices

• Tools and resources produced and supported by EPA, and other useful references