A recent United Nations report co-written by University of Portsmouth experts gives governments a clear guide for developing sustainable blue economies. It addresses rising threats from pollution, climate shifts and biodiversity decline that affect marine and freshwater systems supporting billions of people and a $2.2 trillion ocean economy.

Issued by the United Nations Environment Programme, the Sustainable Blue Economy Transition Framework draws on input from the university’s Revolution Plastics Institute. It assists nations in turning blue economy goals into concrete policies, plans and investments that safeguard water ecosystems while promoting lasting growth.

The document notes that ocean management is often split across sectors like fishing, transport and tourism, even though they rely on shared resources. Overfishing, pollution and climate effects compound this disjointed method, speeding ecosystem loss that helps control climate, maintain biodiversity, ensure food supplies and support jobs worldwide.

Instead of a uniform fix, the framework guides countries in creating tailored pathways suited to their priorities, institutions and development level. It describes a three-step process to review current setups, form a common vision and integrate sustainability into routine planning and spending.

Nature-based approaches form a core element, showing how safeguarding mangroves, reefs, seagrass beds and wetlands can yield gains in climate stability, species protection, risk reduction, food access and viable incomes.

A companion tool, the Sustainable Blue Economy Rapid Readiness Assessment, lets governments evaluate policies, bodies, funding and oversight, spot key actions and advance long-term changes.

UNEP Ecosystems Division director Susan Gardner stated the framework centers nature solutions, inclusive governance and cross-government work in choices. It urges nations to weigh broader environmental, social and economic effects beyond immediate results and to focus resources for maximum lasting gains.

University of Portsmouth researcher Antaya March noted many nations hold strong blue economy plans yet struggle with coordinated steps. The framework identifies needed changes and offers a clear method to align rules, funding and choices so protection and growth support each other.

Equity is emphasized, stressing involvement of women, Indigenous groups, local communities and others in resource decisions. Through coordinated governance and nature investments, it seeks to address linked issues of climate, biodiversity, pollution and waste.

Revolution Plastics Institute head Steve Fletcher said achieving a sustainable blue economy means balancing growth with ecosystem health. The framework supplies an evidence-based, adaptable and practical approach for such decisions.

Credit:
https://phys.org/news/2026-07-roadmap-sustainable-blue-economies.html
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