Trees and forests vary widely in the amount of carbon they can store. Climate, species composition, disturbance history, size of the forest, and other factors must all be taken into consideration. The United States Environmental Protection Agency estimates that a medium growth coniferous or deciduous tree, planted in an urban setting and allowed to grow for 10 years, sequesters 23.2 and 38.0 lbs of carbon, respectively. The same agency, for a managed forest over 20 years, reports an average of 200 metric tons of carbon is stored per hectare. This is consistent with the results of our growing partner, WeForest, who reports their estimated carbon storage potential after 20-30 years of restoration ranges between 140 to 317 t CO2 per hectare. Redwood forests store over 2,500 t of carbon per hectare. Mangrove forests typically hold 335 t of carbon per hectare although a forest in the Yukatan Peninsula reportedly stockpiled up to about 2,800 metric tons of carbon per hectare in the soil.
Our publication, Carbon Offsets: Monetizing Regreening for Climate Mitigation, provides an overview of carbon cap-and-trade compliance markets, the Regional Greenhouse Gas Initiative (RGGI), voluntary carbon markets, add-on credits, and tree-carbon financial examples for habitats, FMNR, timber, orchards, and mangroves. Read Balanced Finance: Capturing an Opportunity, for information on growth carbon, protected carbon, blue carbon, sustainable timber, agroforestry, and other forest-related asset classes beyond carbon.