A new assessment warns that one of Asia’s largest natural water-storage systems is moving toward a critical threshold. As glaciers shrink, meltwater initially increases. Eventually the remaining ice becomes too small to sustain those flows and river discharge starts declining.
The stakes are enormous because Himalayan snow and ice feed river systems supporting hundreds of millions of people. Water availability affects drinking supplies, agriculture, hydropower and industrial growth.
The monitoring gap is striking: only 21 of roughly 40,000 glaciers in the broader region are directly monitored, while unstable glacial lakes are expanding.
Water scarcity is an economic and political risk multiplier. Regions dependent on predictable seasonal melt may face more volatile agriculture, infrastructure damage and competition over storage and river management long before glaciers disappear.
A regional assessment warns the Hindu Kush-Himalaya system is approaching peak water, when meltwater flows first rise as glaciers shrink and then begin declining.