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Summary

The research investigates the influence of changing climate patterns, particularly global temperature rises and altered precipitation, on groundwater resources in a section of the Himalayan river system. Analyzing hydro-meteorological data from the Kankai River Basin in East Nepal using statistical methods, the study reveals significant warming trends (0.14–0.64 °C/decade) in temperature and varied precipitation patterns, notably at higher elevations. Future projections using CanESM2 anticipate a decrease in average annual precipitation by 1.82 mm/year. This changing climate has impacted groundwater, possibly leading to reduced recharge and increased evapotranspiration. By understanding these effects and climate scenarios, planners can develop effective adaptation strategies, plans, and programs for the region's sustainable development.