Despite the ocean covering more than 70% of the Earth’s surface, only around 1% of global climate finance goes to ocean-based climate action. This staggering mismatch is one of the most urgent challenges highlighted at COP30.
PELAKITA.ID – When the world gathers in Belém for COP30, most eyes naturally turn to the Amazon. Yet, quietly but decisively, another life-support system of the planet is taking center stage: the ocean.
For the first time in the history of the UN climate conferences, marine issues are not treated as afterthoughts but as essential pillars of climate action — mitigation, adaptation, and global cooperation.
Brazil, as the host, is intentionally placing the blue planet at the heart of global climate politics. The spotlight is turning toward mangroves, blue carbon, offshore energy, plastic pollution, and governance of the high seas. And with that comes an urgent call — that saving the ocean is not optional, but indispensable to securing a livable future.
1. Mangroves and the Rise of Blue Carbon Leadership
Brazil arrived at COP30 with a bold proposition: to treat mangroves as frontline climate assets. Through its new ProManguezal program, the government hopes to scale up mangrove protection and restoration across its coastline — ecosystems that store some of the highest densities of carbon on Earth.
This effort is part of what climate scientists call “blue carbon solutions”: climate mitigation strategies rooted in coastal and marine ecosystems such as mangroves, seagrass meadows, and salt marshes. These natural systems absorb and store carbon at rates far exceeding most terrestrial forests.
Brazil’s move signals a growing understanding: safeguarding mangroves is not merely an environmental cause, but a climate necessity.
2. The “Blue NDC”: Bringing the Ocean Into the Global Climate Commitments
One of the most groundbreaking developments is the integration of ocean-based actions into Brazil’s Nationally Determined Contribution (NDC) — a first in its climate roadmap.
Alongside France, Brazil has launched the Blue NDC Challenge, calling on countries to incorporate marine protected areas, sustainable fisheries, coastal resilience, and marine spatial planning into their national climate pledges.
In practical terms, this means:
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zoning ocean spaces to avoid conflict between conservation and industry,
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strengthening governance of fisheries and marine resources,
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and embedding coastal protection into adaptation plans.
If the Challenge gains global traction, COP30 could mark the beginning of a new era where oceans officially count in the mathematics of climate ambition.
3. Raising the Bar on Adaptation: Measuring Ecosystem Health
Negotiators at COP30 are also pushing to make the Global Goal on Adaptation more concrete. One major proposal: developing indicators that measure the health and resilience of coastal and marine ecosystems.
Healthy oceans buffer storms, cool coastlines, support fisheries, and sustain millions of livelihoods. By integrating ecosystem health metrics into the global adaptation framework, countries can better track whether they are truly protecting their coastlines — not only in policy documents, but in real ecological outcomes.
4. The Ocean Finance Gap: A Crisis Hiding in Plain Sight
Despite the ocean covering more than 70% of the Earth’s surface, only around 1% of global climate finance goes to ocean-based climate action. This staggering mismatch is one of the most urgent challenges highlighted at COP30.
Ocean action remains chronically underfunded. Without new financing channels for marine conservation, restoration projects, coastal adaptation, and sustainable blue economies, most ocean commitments risk falling flat.
COP30, many experts argue, is a critical moment to correct this imbalance.
5. Marine Threats: Warming Seas and Plastic Pollution
Brazilian leaders have used COP30 to underscore two rapidly escalating threats:
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Rising ocean temperatures, which intensify storms, disrupt fisheries, and bleach coral reefs.
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Plastic pollution, now reaching even the most remote marine zones.
Brazil announced its own national strategy to combat marine plastic pollution — a signal that ocean health is becoming inseparable from national climate priorities.
6. Navigating the Future of Shipping, Offshore Energy, and Fossil Fuels
The maritime sector is entering a new era of scrutiny. Discussions at COP30 include:
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decarbonizing global shipping,
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promoting cleaner ocean-based energy,
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and reforming offshore industries to reduce environmental impacts.
Yet here, Brazil faces a delicate balancing act. Even as it champions ocean protection, the country continues to explore offshore oil expansion — a policy contradiction that critics say could undermine its climate leadership.
7. Governance, Peace, and the High Seas
Brazil has warned of the danger of “ocean unilateralism” — when powerful states assert control over shared sea lanes or marine resources. COP30 offers a space to highlight the need for cooperation rather than conflict.
A significant moment came when President Lula reaffirmed Brazil’s intention to ratify the High Seas Treaty, strengthening protections for marine life in areas beyond national jurisdiction.
If ratified globally, the treaty could transform half the planet — the high seas — into a better governed, more resilient common good.
The Underlying Tensions
Despite strong commitments, COP30 exposes several unresolved tensions:
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Financing gaps that endanger ocean programs.
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Implementation challenges — translating ocean talk into ocean action.
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Policy contradictions, especially regarding offshore oil.
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Equity concerns, with Indigenous and coastal communities demanding real participation and benefit-sharing.
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Measurement difficulties, particularly in capturing marine ecosystem health within global climate metrics.
These tensions remind us that ambition alone is not enough; structural change is required.
Why the Ocean Matters — and Why COP30 Could Be a Turning Point
The ocean is too often portrayed as a victim — acidifying, warming, suffocating. But at COP30, a different narrative is emerging: the ocean as a powerful climate solution.
Healthy marine ecosystems:
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lock away vast stores of carbon,
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protect communities from storms and erosion,
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sustain fisheries and local economies,
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and maintain the stability of the global climate system.
The Amazon and the ocean are inseparable; the rivers that flow through Belém carry nutrients, sediments, and lifeblood to the mangroves and coastal ecosystems beyond. Hosting COP30 in the Amazon is a reminder: Earth systems are connected, and so must our solutions be.
If countries follow through on their new ocean commitments — the Blue NDCs, mangrove restoration, ocean finance reform, and strong global governance — COP30 might be remembered as the moment the world finally recognized the ocean’s central role in climate action.
A Call to Action
Oceans do not ask for much — just space to breathe, time to heal, and a global community willing to protect what protects us.
The agenda set in Belém is powerful but fragile. It needs:
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public support,
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strong political follow-through,
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investment from governments and philanthropies,
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and pressure from civil society.
If we act on what COP30 has begun, the ocean can be our greatest ally in confronting the climate crisis.
If we ignore it, we risk losing a stabilizing force that humanity cannot replace.
This is the decade to choose.
The ocean is rising — the question is, will we rise with it?