
Lack of global consensus bodes ill for health of world’s oceans
- From marine pollution and harmful fishing practices to biodiversity loss and increasing acidification, our oceans are in trouble but long-term issues tend to get short shrift from political leaders
- The inability to effectively regulate oceans stems mainly from contradictions, anomalies and the realpolitik surrounding the UN Convention on the Law of the Sea
The past 300 years have witnessed rapid technological progress, resulting in the ruthless exploitation of natural resources. Rampant environmental pollution has damaged the health of the planet.
The Lisbon conference brought together some 6,500 participants, including heads of government and high-level representatives. It concluded with a declaration titled “Our Ocean, Our Future, Our Responsibility”, which focused on life below water – the UN’s 14th Sustainable Development Goal.
It exhorted the global community to save the oceans from existing and future threats, including marine pollution, harmful fishing practices, biodiversity loss and acidification. Regretting the collective failure to achieve the development goals, the declaration added: “As leaders and representatives of our governments, we are determined to act decisively and urgently to improve the health, productivity, sustainable use and resilience of the ocean and its ecosystems.”
The health of the world’s oceans has received periodic attention from global leaders but with modest results. For example, the joint communique issued after the 2018 Commonwealth heads of government meeting in London had the theme of “Towards a common future”.
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The problem areas of the world’s oceans have been identified and are interlinked. The inability to regulate the oceans effectively and ensure compliance stems from issues with the UN Convention on the Law of the Sea (UNCLOS). While it provides a painstakingly negotiated legal framework, it is also beset by contradictions, anomalies and the compulsions of realpolitik.
Some 168 parties have ratified UNCLOS and a further 14 have signed on but not ratified it, with the United States among the latter group. It is instructive to note that while the US has not ratified UNCLOS and is unlikely to do so any time soon, it does claim to comply with the convention.

Yet, the health of our oceans is critical right across the spectrum – from human security to life rhythms around the planet – and the ocean acidification index is a key indicator. Since the start of the Industrial Revolution and the rise in carbon dioxide emissions, the average pH value of surface ocean water has fallen from 8.2 to 8.1. This is significant as each decrease of one pH unit is a tenfold increase in acidity, meaning the acidity of the ocean is about 25 per cent greater than during preindustrial times.
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Hectoring China over the maritime domain instead of bringing it into the fold is counterproductive given what is at stake. China’s own dependence on the seas is considerable, making it a major stakeholder in protecting the health of the global commons.
If the world cannot manage the health of the oceans in a consensual, ethical manner with enlightened self-interest, it is unlikely to forge any meaningful consensus on issues concerning space and cybersecurity – the extended global commons of this century. Be warned.
Commodore C. Uday Bhaskar is director of the Society for Policy Studies, an independent think tank based in New Delhi
