Everest has gained roughly 15 to 50 metres (40 to 164 feet) in height due to this change in the regional river system. The Kosi river merged with the Arun river approximately 89,000 years ago as ...
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Mount Everest is growing taller – and now we know whyThe upstream Arun river flows east at high altitude with a flat valley. “It then abruptly turns south as the Kosi river, dropping in elevation and becoming steeper.
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