The creation of the Federal Ministry of Marine and Blue Economy was a long-overdue institutional step. But in a climate-constrained world, structure alone will not determine success. Climate alignment will.

The science is clear. Oceans absorb nearly 30 percent of global carbon emissions and more than 90 percent of excess heat trapped by greenhouse gases. Coastal ecosystems, particularly mangroves, can store up to four times more carbon per hectare than terrestrial forests. Countries that recognise this climate value are embedding marine development directly into their climate finance and national adaptation strategies, positioning the blue economy as a core pillar of climate action rather than a peripheral sector..

Nigeria has the largest mangrove coverage in Africa, yet no comprehensive framework linking these ecosystems to carbon markets or resilience financing. At the same time, rising sea surface temperatures and coastal erosion threaten fisheries productivity and infrastructure.

If marine investments are not climate-resilient, they risk becoming stranded assets.

A climate-ready blue economy requires three practical shifts.

First, aquaculture expansion must be climate-smart. Aquaculture now supplies over half of fish consumed globally, but poorly designed systems can increase emissions and environmental degradation. Nigeria can leapfrog outdated models by prioritising feed efficiency, water recirculation systems, and ecosystem-based adaptation from the outset.

Second, coastal ecosystems must be treated as economic infrastructure. Mangrove restoration is not simply environmental protection — it protects shorelines, sustains fisheries, and generates measurable carbon value. Integrating these assets into national climate commitments could unlock international finance.

Third, marine investment must be guided by transparent sustainability metrics. The EU Sustainable Finance Taxonomy provides science-based standards for marine activities. If Nigeria seeks to attract institutional capital into its blue economy, it must demonstrate similar credibility.

The Ministry now exists. The opportunity is clear.

But the real question is whether Nigeria will build a blue economy that is climate-resilient — or one that repeats past vulnerabilities under a new label.

In the coming decade, climate risk will shape economic competitiveness. A blue economy that ignores climate alignment will underperform. One that embeds resilience at its core can drive growth while protecting long-term stability.

The future of Nigeria’s marine economy depends on that choice.

Adeleke Babatunde is a professional in sustainable finance and development, blue economy, and bioeconomy, with an extensive interdisciplinary background spanning over 16 years.