Blue Carbon Audit for the South Pacific

Alluvium supported the MACBLUE project to assess and protect blue carbon ecosystems across the Pacific, providing data on carbon sequestration and habitat health while building local capacity for long-term coastal conservation.

Blue Carbon Ecosystems (BCEs), such as mangroves, seagrasses, and salt marshes, are highly efficient carbon sinks, capturing carbon at a much greater rate than terrestrial forests. These ecosystems also provide crucial services, including storm protection and habitat for fisheries. However, when they are degraded or removed, they release significant amounts of carbon, contributing to climate change. Protecting and restoring these habitats is vital for mitigating climate impacts and maintaining healthy coastal environments.

Alluvium supported MACBLUE project, a collaborative effort between SPREP, GIZ, and SPC, aimed at strengthening coastal biodiversity conservation in Fiji, Papua New Guinea, Solomon Islands, and Vanuatu.

The project focused on assessing blue carbon habitats in the Pacific region. Through this work, we has verified satellite mapping, assessed carbon sequestration rates in seagrass and mangrove ecosystems, and evaluated the overall health of coastal blue carbon habitats. In addition, the project has built local capacity to better manage these critical ecosystems. The data collected has guided conservation efforts, helping governments protect and restore these essential habitats for future generations.