Africa contains about 20 percent of the world's mangrove forests, with Mozambique second to Nigeria in total area of mangrove cover. The Zambezi River Delta, which forms the second largest continuous mangrove habitat in Africa, is also home to many small communities of people who depend on the forests and near-shore fisheries for their livelihoods, making it an area of great interest for conservation. Forest Service scientists worked with collaborators in Mozambique to set up inventory plots in remote mangrove forests using a Spatial Decision Support System to locate plots on the ground in five different canopy height classes. They found that ecosystem carbon density ranged from 373.8 to 620.8 milligrams per hectare .3738 grams per 2.47 acres) . Soil carbon was the largest pool accounting for 45 to 73 percent of the carbon in each of the height classes. This project represents the first comprehensive mangrove forest inventory in East Africa. The results of the study will provide a baseline for the United Nations program Reducing Emissions from Deforestation and Forest Degradation (REDD+). Results also will be included in the national forest inventory being conducted by the government of Mozambique. Additionally, it will provide the foundation for a new Blue Forests project implemented by the World Wildlife Fund-Mozambique with funding from the Global Environmental Facility.