Restore Ecosystems - Mangroves - Ocean Central
Mangroves are coastal forests made up of about 70 salt-tolerant species of trees, shrubs, and ferns, found mainly in tropical and subtropical regions.
They are critical ecosystems that support both local and global economies by protecting shorelines, sustaining fisheries, and providing resources for millions of coastal communities.
From an ocean health perspective, mangroves are key to marine life abundance—serving as nurseries for fish and other species—and to ecosystem prosperity, as they stabilize coastlines and store significant amounts of carbon.
Despite their value, global mangrove coverage continues to decline, with recent monitoring showing further losses. Conservation and restoration efforts are growing worldwide, with more areas being actively mapped, protected, and restored through initiatives like the Global Mangrove Watch, which tracks mangrove extent and change to guide action.
Key Stats
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Total number of mangrove species globally
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~147,359 km²
Mangrove habitat extent.
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-5,245 km²
Net change in mangrove area from 1996 to 2020.
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Number of countries with mangrove habitats.
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$894 billion
Source: Zhang, J., Lu, Z., Zhou, J., Bai, Y., Sanders, C.J., Macreadie, P.I., Yuan, J., Huang, X. and Wang, F. (2025) ‘Getting the best of carbon bang for mangrove restoration buck’, Nature Communications, 16, article 1297. Available at: https://www.nature.com/articles/s41467-025-56587-2 (Accessed: 5 February 2026).Estimated annual value of mangrove ecosystem services (2019)
Bunting P., Rosenqvist A., Lucas R., Rebelo L-M., Hilarides L., Thomas N., Hardy A., Itoh T., Shimada M. and Finlayson C.M. (2018). The Global Mangrove Watch – a New 2010 Global Baseline of Mangrove Extent. Remote Sensing, 2018, 10, 1669; doi:10.3390/rs10101669
Bunting, P.; Rosenqvist, A.; Hilarides, L.; Lucas, R.M.; Thomas, T.; Tadono, T.; Worthington, T.A.; Spalding, M.; Murray, N.J.; Rebelo, L-M. Global Mangrove Extent Change 1996 – 2020: Global Mangrove Watch Version 3.0. Remote Sensing. 2022
Globally, mangrove ecosystems have decreased by 27.3% between 1970 and 2019.
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Data Frequency
The number of years of available data.
11Years
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Data Quality
Sufficient – At least 2 data points available for trend analysis AND at least one data point in the last 7 yearsInsufficient – Does not have any data at all for analysis Expired – Does not have any data in the last 10 years Not Recent – At least one data point in the last 8 to 10 years Recent – At least one data point in the last 7 years Sufficient – At least 2 data points available for trend analysis AND at least one data point in the last 7 years
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Geographic Range
100% of global data avaliableThe percentage of the ocean represented by the available data
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Global Goal(s)
Global Goal(s)None – No Global Goal Established Low – The goal is broad Medium – The goal is specific High – The goal is measurable
There is still so much we do not know about our oceans.
Join us in filling critical gaps in ocean data.
Mangroves can now be tracked with unprecedented accuracy, thanks to advances in satellite monitoring and coastal mapping.
These tools reveal where mangroves are being lost to urban expansion, aquaculture, and erosion, as well as where restoration and natural regeneration are leading to gains. Global assessments show that over a third of mangrove loss in recent decades is linked to human activity, while climate-driven impacts such as sea-level rise and extreme weather are emerging as major threats.
At the same time, data from initiatives such as the Global Mangrove Watch and the UN Decade on Ecosystem Restoration highlight positive trends in areas where protection and community-led restoration are in place. Tracking these changes not only shows the health of mangrove ecosystems but also provides critical insights into their role in carbon storage, coastal protection, biodiversity support, and local livelihoods. Together, these insights provide a clearer understanding of the current state of mangroves and what is required to safeguard their future, informing global efforts to meet climate and biodiversity goals.
Explore where mangroves are most prevalent and how those habitats are changing.
Bunting P., Rosenqvist A., Lucas R., Rebelo L-M., Hilarides L., Thomas N., Hardy A., Itoh T., Shimada M. and Finlayson C.M. (2018). The Global Mangrove Watch – a New 2010 Global Baseline of Mangrove Extent. Remote Sensing, 2018, 10, 1669; doi:10.3390/rs10101669
Bunting, P.; Rosenqvist, A.; Hilarides, L.; Lucas, R.M.; Thomas, T.; Tadono, T.; Worthington, T.A.; Spalding, M.; Murray, N.J.; Rebelo, L-M. Global Mangrove Extent Change 1996 – 2020: Global Mangrove Watch Version 3.0. Remote Sensing. 2022
There are approximately 147,359 km² of mangroves globally— 100% of which lie within national EEZs.
Bunting P., Rosenqvist A., Lucas R., Rebelo L-M., Hilarides L., Thomas N., Hardy A., Itoh T., Shimada M. and Finlayson C.M. (2018). The Global Mangrove Watch – a New 2010 Global Baseline of Mangrove Extent. Remote Sensing, 2018, 10, 1669; doi:10.3390/rs10101669
Bunting, P.; Rosenqvist, A.; Hilarides, L.; Lucas, R.M.; Thomas, T.; Tadono, T.; Worthington, T.A.; Spalding, M.; Murray, N.J.; Rebelo, L-M. Global Mangrove Extent Change 1996 – 2020: Global Mangrove Watch Version 3.0. Remote Sensing. 2022
Globally, mangrove ecosystems have gained 4,103 km² and lost 9,348 km² resulting in a net change of -5,245 km² between 1996 and 2020.
Track the pressures driving mangrove loss, from species at risk to disturbance alerts.
Global Mangrove Watch (GMW) (2023) Drivers of mangrove change. Global Mangrove Watch. Available at: https://www.globalmangrovewatch.org. (Accessed: 20 October 2025).
Globally, the primary driver of mangrove change (47.9%) is commodity production including agriculture, and aquaculture
Bunting P., Rosenqvist A., Lucas R., Rebelo L-M., Hilarides L., Thomas N., Hardy A., Itoh T., Shimada M. and Finlayson C.M. (2018). The Global Mangrove Watch – a New 2010 Global Baseline of Mangrove Extent. Remote Sensing, 2018, 10, 1669; doi:10.3390/rs10101669
Globally, there are 66 species of mangroves tracked by the IUCN out of which 3 are considered endangered meaning there's still a strong chance for recovery with timely action.
| Species | Status |
|---|---|
| Acanthus ebracteatus | LC |
| Acanthus ilicifolius | LC |
| Acanthus volubilis | LC |
| Acrostichum aureum | LC |
| Acrostichum danaeifolium | LC |
| Acrostichum speciosum | LC |
| Aegialitis annulata | LC |
| Aegialitis rotundifolia | NT |
| Aegiceras corniculatum | LC |
| Aegiceras floridum | NT |
| Aglaia cucullata | DD |
| Avicennia alba | LC |
| Avicennia bicolor | VU |
| Avicennia germinans | LC |
| Avicennia integra | VU |
| Avicennia marina | LC |
| Avicennia officinalis | LC |
| Avicennia schaueriana | LC |
| Brownlowia argentata | DD |
| Brownlowia tersa | NT |
| Bruguiera cylindrica | LC |
| Bruguiera exaristata | LC |
| Bruguiera gymnorhiza | LC |
| Bruguiera hainesii | CR |
| Bruguiera parviflora | LC |
| Bruguiera sexangula | LC |
| Camptostemon philippinensis | EN |
| Camptostemon schultzii | LC |
| Ceriops australis | LC |
| Ceriops decandra | NT |
| Ceriops tagal | LC |
| Ceriops zippeliana | LC |
| Conocarpus erectus | LC |
| Cynometra iripa | LC |
| Dolichandrone spathacea | LC |
| Excoecaria agallocha | LC |
| Heritiera fomes | EN |
| Heritiera globosa | EN |
| Heritiera littoralis | LC |
| Kandelia candel | LC |
| Kandelia obovata | LC |
| Laguncularia racemosa | LC |
| Lumnitzera littorea | LC |
| Lumnitzera racemosa | LC |
| Mora oleifera | VU |
| Nypa fruticans | LC |
| Osbornia octodonta | LC |
| Pemphis acidula | LC |
| Phoenix paludosa | NT |
| Rhizophora apiculata | LC |
| Rhizophora mangle | LC |
| Rhizophora mucronata | LC |
| Rhizophora racemosa | LC |
| Rhizophora samoensis | NT |
| Rhizophora stylosa | LC |
| Scyphiphora hydrophylacea | LC |
| Shirakiopsis indica | LC |
| Sonneratia alba | LC |
| Sonneratia apetala | LC |
| Sonneratia caseolaris | LC |
| Sonneratia griffithii | CR |
| Sonneratia lanceolata | LC |
| Sonneratia ovata | NT |
| Tabebuia palustris | VU |
| Xylocarpus granatum | LC |
| Xylocarpus moluccensis | LC |
Bunting, P.; Hilarides, L.; Rosenqvist, A.; Lucas, R.M.; Kuto, E.; Gueye, Y.; Ndiaye, L. Global Mangrove Watch: Monthly Alerts of Mangrove Loss for Africa. Remote Sens. 2023, 15, 2050. https://doi.org/10.3390/rs15082050
Globally, there were 951,676 mangrove disturbance alerts—remote detections of natural or human induced canopy loss or degradation—between January 2019 and December 2025.
See where mangroves are safeguarded and how restoration efforts are expanding their coverage.
Bunting P., Rosenqvist A., Lucas R., Rebelo L-M., Hilarides L., Thomas N., Hardy A., Itoh T., Shimada M. and Finlayson C.M. (2018). The Global Mangrove Watch – a New 2010 Global Baseline of Mangrove Extent. Remote Sensing, 2018, 10, 1669; doi:10.3390/rs10101669
Bunting, P.; Rosenqvist, A.; Hilarides, L.; Lucas, R.M.; Thomas, T.; Tadono, T.; Worthington, T.A.; Spalding, M.; Murray, N.J.; Rebelo, L-M. Global Mangrove Extent Change 1996 – 2020: Global Mangrove Watch Version 3.0. Remote Sensing. 2022
UNEP-WCMC and IUCN (2026), Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM) [Online], January 2026, Cambridge, UK: UNEP-WCMC and IUCN. Available at: www.protectedplanet.net.
Globally, approximately 41.57% of mangroves lie within established protected areas.
Duarte, C.M., Agustí, S., Barbier, E., Britten, G.L., Castilla, J.C., Gattuso, J.-P., Fulweiler, R.W., Hughes, T.P., Knowlton, N., Lovelock, C.E., Lotze, H.K., Predragovic, M., Poloczanska, E., Roberts, C. and Worm, B. (2020) Rebuilding marine life. Nature, 580(7801), pp. 39–51. https://doi.org/10.1038/s41586-020-2146-7
Globally, there was an increase of 278 mangrove restoration projects between 1930 and 2015.
For most of human history, living nature was not 
given a financial value.
When mangroves were cut down or degraded 25 years ago to give space for development, carbon was not traded, priced, or even considered an asset. Nature was treated as a free good — and as a result, vast areas of mangroves were destroyed without accounting for the hidden cost to our climate, our coastline.
When we lost these mangroves, we did not just lose trees. We lost one of Earth’s most powerful natural carbon sinks. While this platform focuses on valuing carbon, mangroves provide many other critical services, including:

- Flood protection (reducing storm surges and coastal erosion)
- Biodiversity support (nurseries for fish, birds, and other species)
- Water quality improvement (filtering pollutants and trapping sediments)
- Local climate regulation (cooling and humidity control)
We know what was lost, but how much can we bring back? Even restoring a fraction of the lost area can deliver major climate and ecological benefits. Mangroves do not mature overnight. They rebuild slowly, year by year, accumulating carbon as they grow. The value of restoration starts the moment we act.
Bunting P., Rosenqvist A., Lucas R., Rebelo L-M., Hilarides L., Thomas N., Hardy A., Itoh T., Shimada M. and Finlayson C.M. (2018). The Global Mangrove Watch – a New 2010 Global Baseline of Mangrove Extent. Remote Sensing, 2018, 10, 1669; https://doi.org/10.3390/rs10101669
Total Organic Carbon was obtained from Global Mangrove Watch. This value was then multiplied by the social cost of carbon (SCC), a number that reflects the negative externalities associated with emissions of CO_2. There are a range of estimates that can be used for the SCC, and the Ecosystem Valuation tool currently implements the value defined under the Obama Administration (and repeated under the Biden Administration) of $51 per ton of CO2 equivalent.
Globally, the above- and below-ground biomass of mangroves contributes an estimated $1.12 T in blue carbon value and sequesters 21,953 Mt COâ‚‚e.
Globally, the above- and below-ground biomass of mangroves contributes an estimated $1.12 T in blue carbon value and sequesters 21,953 Mt COâ‚‚e.
Bunting P., Rosenqvist A., Lucas R., Rebelo L-M., Hilarides L., Thomas N., Hardy A., Itoh T., Shimada M. and Finlayson C.M. (2018). The Global Mangrove Watch – a New 2010 Global Baseline of Mangrove Extent. Remote Sensing, 2018, 10, 1669; https://doi.org/10.3390/rs10101669
Total Organic Carbon was obtained from Global Mangrove Watch. This value was then multiplied by the social cost of carbon (SCC), a number that reflects the negative externalities associated with emissions of CO_2. There are a range of estimates that can be used for the SCC, and the Ecosystem Valuation tool currently implements the value defined under the Obama Administration (and repeated under the Biden Administration) of $51 per ton of CO2 equivalent.
Between 1996 and 2020, global losses of above- and below-ground mangrove biomass resulted in an estimated losses of $41 M in blue carbon value and 820 Mt COâ‚‚e of sequestered carbon.
Between 1996 and 2020, global losses of above- and below-ground mangrove biomass resulted in an estimated losses of $41 M in blue carbon value and 820 Mt COâ‚‚e of sequestered carbon.
​​Mangroves are irreplaceable natural infrastructure. They safeguard our coasts, store carbon, and support many varieties of life. Their future depends on our collective efforts to protect and restore them.
Taking Action
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Protect Existing Forests
Establishing and enforcing marine protected areas around mangrove forests can shield them from further development and destruction. This involves stricter enforcement of conservation laws and long-term mangrove management.
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 Scale Up Mangrove Planting
Large-scale restoration projects should focus on planting mangrove seedlings in degraded areas, using native species and adjusting techniques to local conditions to enhance survival rates.
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Address Land Use Practices
Reform of land-use practices, particularly in agriculture and aquaculture, is imperative for halting further degradation. Sustainable alternatives must be incentivized to balance economic development with environmental stewardship.
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Promote Natural Regeneration
Removing stressors like pollution and improving hydrological conditions encourage natural recolonization of degraded areas.
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Address the Drivers of Loss
Shifting towards sustainable tourism, sustainable agriculture, and aquaculture practices that do not require the clearing of mangroves can help prevent further destruction of mangrove ecosystems.
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Marine Spatial Planning
Developing plans that prioritize mangrove conservation and restoration, coupled with strong regulations and community involvement, will help ensure ecological resilience.
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Community Engagement
Involving local communities in the protection and restoration of mangrove ecosystems is essential. Programs that incorporate Indigenous knowledge, promote sustainable livelihoods, and raise awareness about the importance of mangroves can ensure long-term success.
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Financial Incentives
Governments, NGOs, and the private sector should develop financial mechanisms, including grants, subsidies, and conservation funds, to incentivize the preservation and restoration of mangroves.
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Research and Monitoring
Supporting scientific research is needed to track the health of mangrove ecosystems and refine restoration techniques. Technologies like satellite monitoring and ground surveys can provide accurate data to inform restoration efforts.
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Enhance International Collaboration
Global partnerships are crucial to scaling up mangrove restoration efforts. Strengthening international policies and agreements, including commitments to the UN Sustainable Development Goals (SDGs), provide a framework for coordinated action on mangrove protection and restoration.
View relevant data layers on the globe using the available map toggle in the top right of each card in the left panel.
View relevant data layers on the globe using the available map toggle in the top right of each card in the left panel.
View relevant data layers on the globe using the available map toggle in the top right of each card in the left panel.
View relevant data layers on the globe using the available map toggle in the top right of each card in the left panel.