UN Report Warns of Accelerating Ocean Stress and Doubling Sea Level Rise
• The United Nations' third World Ocean Assessment has revealed that the world's oceans are under 'severe and accelerating' stress due to human activities. The report highlights that the rate of sea level rise has doubled over the past decade, increasing from 2mm per year before 2015 to 4.3mm per year in
• Additionally, 16% of the global ocean heat increase since 1955 occurred after 2018, with the Atlantic Ocean and southern parts of the Indian and Pacific Oceans experiencing the greatest relative warming. The report, which reflects the work of nearly 600 scientists from 86 countries, underscores the cumulative impacts of pollution, industrial fishing, and climate change on marine biodiversity and ecosystems. Despite progress in ocean protection, such as the high seas treaty, the report calls for urgent global collaboration to address fragmented governance and protect marine ecosystems.
Why It's Important?
The accelerating sea level rise and ocean warming pose significant risks to coastal communities, marine biodiversity, and global climate regulation. Over a third of the global population lives within 100km of coastlines, with 11% residing on land less than 10 meters above sea level, making them vulnerable to flooding and habitat loss. The report also highlights the impact of 52.1 million tonnes of plastic entering the ocean annually, contributing to 24.4 trillion microplastic particles that affect over 4,000 marine species. Changes in ocean currents, which redistribute heat globally, remain poorly understood but could exacerbate climate breakdown.
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