Nature-Based Power: Mangrove Restoration in the Pacific

Mijica Lus | South Pacific Fellow

Image sourced from Rod Long via Unsplash

For many Pacific Island nations, climate change is not a distant threat but a daily reality shaping coastlines, livelihoods and cultural life. Rising sea levels, storm surges, and coastal erosion are transforming how communities live and how states plan for the future. In response, Pacific governments and communities are not only implementing environmental solutions but also shaping regional governance and international climate engagement.

This article argues that mangrove restoration in the Pacific is more than an ecological response. It is a form of geopolitical agency. Through locally led, nature-based solutions, Pacific nations are asserting sovereignty, strengthening resilience, and reshaping how climate adaptation is governed in international relations. These initiatives challenge top-down climate assistance models by demonstrating that adaptation is often community-driven. 

Mangroves as Ecological and Strategic Infrastructure

Mangroves play a critical ecological role. They reduce the impacts of storm surges, stabilise coastlines, improve water quality, support fisheries and sustain biodiversity while also anchoring cultural relationships between land and sea.

However, mangroves are not only ecological systems. They function as strategic infrastructure, reducing displacement risk and protecting economic activity. They sit at the intersection of environmental policy, development planning, and security governance. 

Unlike large-scale engineered infrastructure, mangrove restoration is low-cost, scalable, and adaptable to local conditions. This makes it particularly significant in the Pacific, where limited fiscal capacity intersects with some of the world’s highest levels of climate vulnerability.

Pacific-Led Restoration and Innovation

Across the Pacific, mangrove restoration is emerging as a Pacific-led model of climate governance shaped by local knowledge systems and development priorities. 

In Papua New Guinea, the Coastline Care Project restores mangrove ecosystems, with young people central to planting and monitoring efforts, strengthening ecological resilience and local ownership. In Vanuatu, restoration is linked to broader resilience planning, including the Lamacca Ecosystem Restoration and Conservation Project under the Kiwa Initiative. This ridge-to-reef approach integrates coastal restoration with community conservation and long-term adaptation. In Fiji, customary marine tenure systems such as the tabu system continue to underpin mangrove protection, reinforcing traditional governance in environmental management. In Palau, LiDAR-based mapping measure mangrove extent and biomass, combining geospatial science with environmental planning and shaping environmental decision-making. In Samoa, mangrove restoration at sites such as Nono’a is supported through partnerships between communities, government, and international actors, illustrating multi-level governance. These examples show that mangrove restoration in the Pacific is diverse, shaped by governance systems, knowledge traditions, and local priorities. 

From Shorelines to Sovereignty

Mangrove restoration is increasingly shaping how Pacific states engage in international relations. Climate change is not only environmental but also geopolitical, influencing migration, economic stability, and regional security across the Blue Pacific. 

In low-lying and coastal communities, Mangroves are not only ecological assets but protective infrastructure that reduces displacement risk and safeguards livelihoods. This shifts their role from conservation projects to strategic climate infrastructure.

By leading restoration efforts, Pacific nations are asserting greater control over how climate adaptation is defined and implemented. This reflects a form of climate sovereignty, where states actively shape priorities, partnerships, and governance frameworks rather than passively receiving externally designed interventions.

External actors including Australia, New Zealand, the United States, and China are increasingly active in the Pacific through climate resilience funding, development programs, and environmental partnerships. Mangrove restoration becomes a site of negotiation where Pacific states align external engagement with local governance and community priorities. 

Rather than passive recipients of climate policy, Pacific states are becoming norm-setters in global climate governance. Through nature-based solutions, they are reshaping how resilience and adaptation are understood internationally.

Implications for Australia and Regional Cooperation

These developments raise important questions for Australia’s approach to climate engagement in the Pacific. While investment has increased, much support has historically been shaped by externally designed programs. 

Pacific-led mangrove initiatives suggest that smaller-scale, community-driven approaches can be equally, and often more, effective in delivering long-term resilience outcomes. These projects succeed because they are embedded within local governance systems and customary knowledge. 

The key lesson is not withdrawal of support, but a shift in approach: from delivering solutions to enabling locally led systems. This requires rethinking the role of external partners, not as primary designers of adaptation strategies, but as supporters of Pacific-defined priorities and governance frameworks.

In practical terms, this means aligning climate finance, technical assistance, and diplomatic engagement with existing Pacific institutions, community organisations, and traditional land and marine governance structures. It also requires recognising that effective adaptation is not purely technical, but deeply social, cultural, and political in nature.

For Australia, this shift strengthens both legitimacy and long-term effectiveness. Engagement that reinforces Pacific agency is more likely to produce sustainable outcomes than approaches that operate independently of local systems.

Mangroves as Climate and Geopolitical Infrastructure

Mangrove restoration in the Pacific is not simply an environmental intervention. It is a model of Pacific-led climate governance in which ecological protection, sovereignty, and international relations are deeply interconnected.

By integrating local knowledge with global partnerships, Pacific nations are reshaping how climate adaptation is understood and governed. Mangroves therefore function in two ways: as physical protection against climate impacts and as symbols of Pacific agency in global climate politics.

Ultimately, the future of resilience in the Pacific will depend not only on infrastructure or finance, but on the extent to which communities are empowered to lead, define and sustain their own environmental futures.

Born on Ngunnawal–Ngambri Country and raised in Port Moresby, Papua New Guinea, Mijica Lus is a young Pacific-Australian advocate passionate about storytelling, regional diplomacy, and elevating the voices of the Pasifika diaspora. She is the Founder of the Aurosokwo Project, an initiative creating digital storytelling pathways for young people across PNG and the Pacific to share their experiences, shape narratives, and influence decision-making. Mijica’s work focuses on youth empowerment, climate justice, gender equality, and strengthening people-to-people connections between Australia and the Pacific. She has collaborated with community organisations, youth networks, and policy stakeholders, and has represented diaspora communities in national dialogues, including engagements at Parliament House. She is a council member with the Australian Red Cross and President of the United Nationals Young Professionals, ACT Chapter. With a commitment to bridging cultures and amplifying Pacific perspectives, Mijica hopes to contribute thoughtful analysis and lived-experience storytelling to YAIA’s South Pacific portfolio. 

Disclaimer: The views and opinions expressed in this article are those of the author, and do not necessarily reflect the views and opinions of Young Australians in International Affairs. AI tools were used by this author for grammar checks but all content is original, and no plagiarism has been used in the preparation of this article.