Karakoram glaciers defy global thinning trend, puzzling scientists
Since the late 1990s, researchers have observed that glaciers in the Karakoram Range, which spans parts of Pakistan, India, Afghanistan, Tajikistan and China, have gained modest amounts of ice even as most mountain glaciers worldwide lose mass. The region hosts over 13,000 glaciers across more than 20,000 square kilometers, with some ranging in elevation from above 7,000 meters to as low as 2,300 meters. Scientists have dubbed this behavior the 'Karakoram Anomaly' and currently attribute it largely to distinctive regional weather patterns.
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Understanding why Karakoram glaciers buck the global trend could refine climate models and improve predictions of water supply for the millions who depend on rivers fed by these glaciers. Glaciologists reportedly doubt the anomaly can persist indefinitely as global warming continues, suggesting the region's unusual stability may eventually give way to the ice loss seen elsewhere. The phenomenon also underscores how localized weather dynamics can temporarily offset broader climate trends.
- Karakoram glaciers have gained modest mass since the 1990s, unlike most non-polar glaciers worldwide.
- The region contains over 13,000 glaciers across more than 20,000 square kilometers, some spanning extreme elevation ranges.
- Scientists attribute the anomaly to unique regional weather patterns but expect it may not withstand prolonged global warming.
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Published there as: “What Is the Karakoram Anomaly?”
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