Global potential and limits of mangrove blue carbon for climate change mitigation

Journal: Current Biology

Published: 2021-04-26

DOI: 10.1016/j.cub.2021.01.070

Affiliations: 4

Authors: 5

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Research Highlight

Mangroves could benefit from blue carbon credits

© Marie Cristabern Joyce Villamor/EyeEm/Getty Images

© Marie Cristabern Joyce Villamor/EyeEm/Getty Images

Carbon financing could protect around a fifth of global mangrove forests.

Blue-carbon schemes pay countries to protect their coastal environments that store significant amounts of carbon. Yet efforts to protect mangroves, one of the most carbon-dense vegetated ecosystems worldwide, have been limited.

Now, researchers at the National University of Singapore have mapped global mangroves and identified roughly 20% of this vital habitat that could be protected from deforestation by blue carbon credits.

The team assessed the profitability of such projects if carbon cost US$5 per tonne, and found that nearly 10% of mangroves could be sustainably protected for three decades.

Blue carbon credits could help several tropical coastal countries move towards their climate change goals, but further interventions are needed to protect the majority of mangroves from future threats.

Supported content

  1. Current Biology 31, 1737–1743 (2021). doi: 10.1016/j.cub.2021.01.070
Institutions Share
National University of Singapore (NUS), Singapore 0.90
The University of Adelaide (Adelaide Uni), Australia 0.10

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