London, September 26, 2025 – The International Maritime Organization (IMO) marked World Maritime Day 2025 with a clear message: protecting the ocean must remain at the heart of global shipping. This year’s theme, “Navigating a Sustainable Future: Protecting Our Ocean”, highlights the industry’s role as both an enabler of world trade and a guardian of marine ecosystems.
World Maritime Day, observed annually on the last Thursday of September, is a moment for governments, shipowners, seafarers, and industry stakeholders to reflect on the challenges and opportunities shaping the maritime sector.
Protecting the Ocean as a Global Responsibility
In his World Maritime Day address, IMO Secretary-General Arsenio Dominguez urged nations and shipping companies to treat ocean health as a shared duty.
“Shipping is the backbone of international trade, but its future depends on the vitality of our oceans. From tackling marine pollution to reducing greenhouse gas emissions, the industry must chart a course where trade growth and environmental protection go hand in hand,” he said.
The IMO outlined four core areas of focus:
- Decarbonization – accelerating adoption of alternative fuels such as methanol, ammonia, and hydrogen, following the revised 2023 IMO GHG Strategy.
- Pollution control – stronger implementation of MARPOL regulations to limit oil discharges, plastic waste, and ship-generated litter.
- Marine biodiversity – ensuring ballast water treatment and hull-cleaning standards reduce invasive species spread.
- Innovation and digitalization – fostering new vessel designs and green technologies that lower operational footprints.
Linking Past Themes to Today’s Focus
The IMO’s 2025 emphasis on ocean protection builds on a decade of evolving World Maritime Day themes that have gradually sharpened the sector’s sustainability agenda:
- 2019 – Empowering Women in the Maritime Community, underscoring inclusivity.
- 2020 – Sustainable Shipping for a Sustainable Planet, setting the stage for decarbonization.
- 2021 – Seafarers: At the Core of Shipping’s Future, spotlighting welfare during the COVID-19 pandemic.
- 2022 – New Technologies for Greener Shipping, emphasizing digitalization and efficiency.
- 2023 – MARPOL at 50: Our Commitment Goes On, celebrating five decades of pollution-prevention rules.
- 2024 – Navigating the Future Together, stressing collaboration across governments, industry, and civil society.
This year’s theme acts as a culmination, bringing together decarbonization, seafarer welfare, and innovation under a single imperative: protecting the ocean that sustains both trade and life itself.
The Ocean–Economy Connection
With more than 80% of global trade moving by sea, shipping is inseparable from the health of the marine environment. Degraded oceans mean risks to fisheries, coastal infrastructure, and supply chains—issues that are already pressing for small island developing states (SIDS) and coastal economies.
The IMO stressed that protecting the ocean is not only an environmental necessity but also an economic safeguard. Investments in green ports, resilient supply chains, and ocean-friendly technologies are increasingly being seen as drivers of competitiveness in a changing global marketplace.
Global Commemorations
World Maritime Day was celebrated across IMO member states with conferences, port open days, and public awareness events. From Asia to Africa and Europe to the Americas, the common message was clear: ocean protection is a shared responsibility, and shipping must lead the way.
Looking Ahead
As the IMO and its 175 member states continue to implement stricter environmental targets, the organization sees 2025 as a turning point. The challenge now is to move from commitments to measurable action—ensuring that the industry not only fuels trade but also safeguards the oceans for generations to come.
In the words of the IMO Secretary-General: “Protecting the ocean is protecting our own future. Shipping must be at the helm of this global mission.”
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