While the Earth's temperature continues to rise at an alarming rate, a surprising phenomenon has emerged on the world's tallest mountain: Mount Everest is getting colder. This unexpected trend is driven by winds triggered by climate change, which sweep down the summit and other Himalayan peaks, bringing with them a blast of frigid air.
This seemingly paradoxical situation has been confirmed by data collected from the Pyramid International Laboratory-Observatory, situated on the slopes of Everest. The observatory's hourly temperature recordings since 1994 reveal a clear cooling trend, despite the global warming trend observed elsewhere.
The research, published in the journal Nature Geoscience, suggests that this cooling effect is caused by a combination of factors:
- Increased glacier melt: Melting glaciers expose darker rock surfaces beneath, which absorb more solar radiation and heat the surrounding air. This creates a rising column of warm air that draws in colder air from above, leading to stronger winds.
- Changes in atmospheric circulation patterns: Climate change is altering global wind patterns, influencing the direction and intensity of winds whipping across the Himalayas. These winds can push down cold air from the summit, further contributing to the cooling
trend. - Enhanced albedo effect: As the snow and ice on Everest melt, more sunlight is reflected back into space, contributing to a cooling effect.
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