UN Report Warns of Severe Ocean Stress as Sea Level Rise Doubles
• The United Nations' third World Ocean Assessment has revealed alarming findings about the state of the world's oceans. The report highlights that the rate of sea-level rise has doubled in the past decade, increasing from 2mm per year before 2015 to 4.3mm per year by
• Additionally, the ocean has absorbed 90% of excess heat and 30% of carbon dioxide emissions caused by fossil fuel burning. The report also notes that 52.1 million tonnes of plastic enter the ocean annually, contributing to 24.4 trillion microplastic particles that affect over 4,000 marine species. Ocean currents, which play a critical role in heat redistribution, are changing, though their future impacts remain poorly understood. The findings emphasize the urgent need for global collaboration to protect marine ecosystems and address the cumulative effects of pollution, industrial fishing, and climate change.
Why It's Important?
The report underscores significant risks to marine biodiversity and ecosystems due to accelerating sea-level rise, pollution, and industrial activities. Coastal communities, particularly those living within 100km of coastlines or on land less than 10 meters above sea level, face heightened vulnerability to flooding and habitat loss. The presence of microplastics in the ocean threatens marine species and food chains, while changes in ocean currents could disrupt global climate systems. The cumulative stressors are putting the ocean under severe strain, with governance and protection efforts still fragmented across regions and sectors.
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