Tag: Ocean Circulation
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How Earth Emerged from the Last Ice Age: Inside NPR’s Short Wave Exploration
Understanding the Last Decrease and Rise of Global Temperatures Long before modern humans walked the Earth, our planet experienced dramatic climate shifts. About 20,000 years ago, global temperatures were roughly 10 degrees Fahrenheit cooler than today, and vast stretches of North America were buried under ice sheets that could reach nearly half a mile in…
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9,000-Year-Old Ice Melt: How Antarctica Could Unravel Quickly
New clues from ancient ice A recent study of 9,000-year-old Antarctic ice reveals that the continent’s ice sheets may retreat far more rapidly than earlier models suggested. The ancient melt layers indicate that warming can trigger a chain reaction, where melting in one area accelerates loss in distant regions through interconnected ocean systems. This finding…
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9,000-Year-Old Melt Reveals How Fast Antarctica Can Fall Apart
New insights from ancient ice reveal a fragile Antarctic system Researchers have traced a dramatic pattern in Antarctica’s ice history: melt events from thousands of years ago show how regional melting can quickly propagate across the continent through oceanic connections. The study, which examines geologic and climatic records from ancient ice, indicates that ice retreat…
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New Catalogue of Antarctic Submarine Canyons
Introduction to Antarctic Submarine Canyons Submarine canyons are significant geological formations found on continental margins across the globe. These underwater valleys serve crucial roles in ocean circulation, sediment transport, and supporting marine biodiversity. Around Antarctica, these canyons are particularly important as they influence global thermoregulation and overall ecosystem functioning. In this article, we will delve…
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A Comprehensive Catalogue of Antarctic Submarine Canyons
Introduction to Antarctic Submarine Canyons Submarine canyons, impressive geological formations found along continental margins, are crucial to the functioning of marine ecosystems around the globe. The unique underwater landscape of Antarctic submarine canyons has recently been documented in a comprehensive catalogue, which highlights their significance in ocean circulation, sediment transport, and marine biodiversity. This article…