Climate-Driven Ice Thinning Slows Down Glaciers in Ladakh's Zanskar Basin

Gist Researchers studying the Zanskar region of Ladakh have discovered that its glaciers are flowing significantly slower than they did three decades ago. This slowdown is driven by climate-induced ice thinning, which reduces the driving force necessary for glacier movement. For civil services aspirants, this highlights a critical shift in cryosphere dynamics: as the transport of ice to lower elevations stalls, the eventual drop in meltwater will severely impact water security, agriculture, and hydropower in the vital Indus river basin. Background - The Zanskar region in Ladakh houses extensive high-altitude glaciers that act as vital freshwater reservoirs in an otherwise arid landscape. - Unlike eastern or central Himalayan glaciers that are heavily influenced by the summer monsoon, Zanskar's glaciers accumulate most of their snow during the winter via mid-latitude Western Disturbances. - Glaciers are not static blocks of ice; they are 'rivers of ice' that constantly flow downhill under their own weight. - This movement transfers ice from high-altitude accumulation zones to lower-elevation ablation melting zones, thereby sustaining downstream river ecosystems during dry summer months. Key Pointers - The Thinning-Slowing…