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UN: Our Oceans Are Drowning in Pollution & Overfishing
8 Jun
Summary
- Sea levels rise at 4.3mm per year, double the rate of a decade ago.
- Ocean heat has increased by 16% since 1955, with more post-2018.
- 52.1 million tonnes of plastic enter oceans annually, impacting species.
The world's oceans are experiencing "severe and accelerating" pressure from human activities, according to the UN's third World Ocean Assessment. The report, compiled by nearly 600 scientists, highlights intensifying stressors like pollution and industrial fishing, leading to significant biodiversity loss and marine system strain.
Key findings indicate sea levels are rising at an increased rate of 4.3mm annually as of 2023, and 16% of global ocean heat increase since 1955 occurred after 2018. Approximately 52.1 million tonnes of plastic enter the ocean each year, contributing to a vast accumulation of microplastics.
UN Secretary-General António Guterres emphasized the need for a new, science-based relationship with the ocean, grounded in international law and shared responsibility. While progress has been made, including a new high seas treaty, ocean governance remains fragmented, requiring strengthened coordination.
The ocean, crucial for climate regulation and biodiversity, has absorbed 90% of excess heat and 30% of CO2 from fossil fuels. However, changing ocean currents and their climate impacts are poorly understood. Greenpeace urged governments to create fully protected ocean sanctuaries to meet the goal of protecting 30% of the ocean by 2030.
