Definition of Blue Carbon

'Blue Carbon' refers explicitly to the carbon captured, fixed, and sequestered by global marine and coastal vegetated habitats. Ecosystems like mangroves, salt marshes, and seagrass meadows store immense carbon reservoirs within their biomass and underlying sediments, acting as critical carbon sinks for climate mitigation. > Blue carbon represents long-term organic carbon capture localized within marine and coastal ecosystems. Answer: (a).