International Day for the Conservation of the Mangrove Ecosystem

26 July

Mangroves are rare, spectacular and prolific ecosystems on the boundary between land and sea. These extra ordinary ecosystems contribute to the wellbeing, food security, and protection of coastal communities worldwide. They support a rich biodiversity and provide a valuable nursery habitat for fish and crustaceans. Mangroves also act as a form of natural coastal defense against storm surges, tsunamis, rising sea levels and erosion. Their soils are highly effective carbon sinks, sequestering vast amounts of carbon.

Yet mangroves are disappearing three to five times faster than overall global forest losses, with serious ecological and socio-economic impacts. Current estimates indicate that mangrove coverage has been divided by two in the past 40 years.


"Mangroves  are  in  danger:  it  is  estimated  that  more  than  three  quarters  of  mangroves  in  the  world  are  now  threatened  and  with  them  all  the  fine  balances  that  depend on them.  This is why UNESCO is acting to protect them, along with other valuable blue carbon ecosystems, through its geoparks, world heritage sites and biosphere reserves."
UNESCO Director-General
Audrey Azoulay UNESCO Director-General
Message from Ms Audrey Azoulay, Director-General of UNESCO, on the occasion of the International Day for the Conservation of the Mangrove Ecosystem (2022)
26 juillet 2022
"We are working to protect mangroves and to better support scientific research into these environments. However, we cannot do this alone. We also need you."
UNESCO Director-General
Audrey Azoulay UNESCO Director-General

UNESCO is engaged deeply in supporting the conservation of mangroves, while advancing the sustainable development of their local communities. The inclusion of mangroves in Biosphere ReservesWorld Heritage sites and UNESCO Global Geoparks contributes to improving the knowledge, management and conservation of mangrove ecosystems throughout the world.

UNESCO is engaged at the scientific and policy levels to protect, manage or restore global blue carbon ecosystems (mangroves, seagrasses and tidal/salt marshes) for addressing climate change. Healthy blue carbon ecosystems also provide habitat for marine species, support fish stocks and food security, sustain coastal communities and livelihoods, filter water flowing into our oceans and reef systems, and protect coastlines from erosion and storm surges.

mangrove ecosystem in the Caribbean
"Let us take action. Despite their immense importance to our own wellbeing, there is still a lot to do in order to stop the continuous loss of mangrove habitats."
Shamila Nair-Bedouelle, UNESCO Assistant Director-General for Natural Sciences

What UNESCO does for the conservation of the mangrove ecosystem

Man and the Biosphere programme (MAB)
Protecting and managing blue carbon ecosystems
World Heritage sites
Download the poster on mangroves in your country
"Based on science, with the support of environmental education and community involvement, we must conserve, restore and promote the sustainable use of mangrove ecosystems. Strengthening coastal UNESCO Biosphere Reserves and establishing new ones is a way to keep what we have and restore what we have lost."
Shamila Nair-Bedouelle UNESCO Assistant Director-General for Natural Sciences


UNESCO Marine World Heritage: custodians of the globe’s blue carbon assets
Outcomes of the collaboration between BRESEP and SPINCAM on the South Pacific Coast of Latin America
Coastal Blue Carbon: methods for assessing carbon stocks and emissions factors in mangroves, tidal salt marshes, and seagrass meadows
[publisher not identified]
Messages from the Director-General
Coastal Blue Carbon - Statement

WMO Statement on the State of the Global Climate in 2018

Securing the future of mangroves - policy brief

Canada - UNU-INWEH 2012

Presentation of mangroves by country - posters

125 posters of mangroves around the world (2022)

Les mangroves et des poissons


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