Biodiversity

Wetlands International: Top Biodiversity Nonprofit Evaluation

Summary

What is Wetlands International?
Wetlands International is a global nonprofit organization working to safeguard and restore wetlands for their environmental value and ecosystem services. It was founded in 1996 through the merger of other wetland nonprofits and is headquartered in the Netherlands.

What does Wetlands International do?
Wetlands International works on (1) implementing site-level wetland conservation and restoration projects, (2) building coalitions for wetlands, (3) creating and valorizing knowledge and tools, (4) engaging in advocacy and technical assistance, and (5) piloting financing mechanisms.

How could Wetlands International help address biodiversity loss?
Wetlands punch far above their weight in terms of biodiversity and ecosystem services. While wetlands cover approximately 10% of the global land surface, up to 40% of the world’s species live and breed in them. Wetlands are disappearing three times faster than forests. We think that Wetlands International’s work to conserve and restore wetlands at scale is important for protecting the ecosystem services they provide and the species that depend on them.

What has Wetlands International accomplished historically?
Wetlands International has played an important role in establishing and maintaining several high-profile initiatives that increase the visibility of and funding for mangrove and freshwater biomes, such as Mangrove Breakthrough, Global Mangrove Watch, and the Freshwater Challenge. It is also a trusted partner for providing technical assistance to governments, such as by helping to improve national or regional wetland management plans. We think Wetlands International can build on its successes with its new Peatland Breakthrough initiative.

Is Wetlands International cost-effective?
We did not conduct a quantitative cost-effectiveness analysis of Wetlands International, because there is no straightforward outcome variable to measure and compare biodiversity benefits. We think that Wetlands International is likely a cost-effective organization because (a) the organization leverages the actions and funding of larger, wealthier, and more powerful actors, and (b) the exclusive focus on wetlands means that its cost-effectiveness is not diluted by work on other biomes that score less favorably on scale, feasibility, and funding need.

Is there room for more funding?
We think Wetlands International could use additional unrestricted funding (at least $1.5 million) to either expand or launch global initiatives, such as the Freshwater Challenge and its new Peatland Breakthrough.1 It can also use unrestricted funding to develop its semi-flexible Wetlands Impact Facility, which is intended to increase the funding available for landscape-scale wetland conservation and restoration.

Are there major co-benefits or potential risks?
We think Wetlands International’s co-benefits and risks are tied to those of wetland conservation and restoration in general. These activities can increase or continue carbon storage and sequestration in the biosphere, reducing global warming. At the same time, some types of freshwater wetland restoration can also lead to short-term methane spikes, temporarily exacerbating short-term warming. While not strictly co-benefits, we think that wetlands offer important ecosystem services, such as disaster risk reduction and water filtration.

What are the key uncertainties and open questions?
Key uncertainties include whether Wetlands International's collaborative initiatives, such as the Mangrove Breakthrough, will reach their intended scale, and the extent to which we should attribute this success to Wetlands International compared to other non-profits also involved in these initiatives.

What is the bottom line and what are the next steps?
We classify Wetlands International as one of our Top Biodiversity Nonprofits. We believe that the organization has made significant contributions to developing effective wetland conservation and restoration practices. Through policy engagements and collaborative initiatives like the Freshwater Challenge, Mangrove Breakthrough, and Global Mangrove Watch, it has increased global attention and funding for wetland conservation. We believe Wetlands International can further expand its efforts within these programs and replicate its successes in other types of wetlands.

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1 €1.3 million EUR, converted to USD on 2025-12-04.

What Is Wetlands International?

Wetlands International is a global nonprofit organization working on the conservation and restoration of wetlands for their environmental value and their ecosystem services.2 Wetlands International was founded in 1996 as a merger between European, Asian, and pan-American organizations working on wetland conservation and restoration, the oldest of which was founded in 1937.3

Wetlands International is headquartered in the Netherlands (its “Global Office”) where it is registered as a Public Benefit Organization.4 The organization has “network offices” in Argentina, Belgium (Europe office), Brazil, Ethiopia, Guinea-Bissau, India, Indonesia, Japan, Kenya, Malaysia, Mali, Panama, the Philippines, Senegal, Sierra Leone, Tanzania, and Uganda.5 The Global Office has a coordinating role and leads non-location-specific work. The network offices are often independent legal entities that share the same strategy and work at the field level, advocating for better local policies.6 Wetlands International also runs an association with the same name; the association has 23 country members and nine nonprofit members that support the organization and collaborate on wetland conservation and restoration.7

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2 There is no universally accepted definition of wetlands. Wetland International works on freshwater and other inland wetlands (rivers, floodplains, lakes, marshes, and inland deltas), peatlands, and coastal wetlands (such as mangroves, saltmarshes, and seagrasses).

3 “Wetlands International and its predecessors have worked to protect wetlands since 1937. [...] Organisations with similar objectives emerged in Asia and the Americas: the Asian Wetland Bureau (AWB) was initiated as INTERWADER in 1983, and Wetlands for the Americas (WA) formed in 1989. These three organisations started to work closely together in 1991. This working relationship evolved into a single global organisation which adopted the name Wetlands International and established its headquarters in the Netherlands in 1996.” Wetlands International, n.d.

4 In Dutch: Algemeen Nut Beogende Instelling (ANBI). Registration number (RSIN) 806703726.

5 List of offices on the website of Wetlands International

6 “We have a network of offices around the world. These, often independent, entities share the same Strategy. We work at the field level to develop and mobilise knowledge, and use this practical experience to advocate for better policies.” Wetlands International, n.d.

7 The list of members is available on the website of Wetlands International.

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