Sonam Wangchuk's Ice Stupas Bring Water Relief to Arid Ladakh
Ladakh, a dry high-altitude region in the Himalayas, has long faced severe water scarcity affecting local agriculture. Engineer Sonam Wangchuk developed a solution called the 'ice stupa,' an artificially constructed conical glacier. These structures capture and freeze winter meltwater, then slowly release it during spring when farmers need it most for irrigation. The innovation requires no energy and is inexpensive to build, making it accessible to resource-limited communities. Beyond Ladakh, the model is being seen as a potential answer to water crises in similarly affected regions around the world.
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