Study of carbon stock and CO2 sequestration on coastal ecosystem of the eastern part of Bintan Island Kepulauan Riau Province has been conducted on April 2016. The potencies of carbon stock and CO2 sequestration within conservation area (Station 1) and anthropogenic area (Station 2) on mangrove ecosystem, also tourism area (Station 1) and conservation area (Station 2) on seagrass ecosystem were…