The uneven distribution of rainfall poses risks to ecosystems and water management systems globally. In wetter climates, the loss of TWS due to concentrated precipitation can exacerbate water scarcity during dry periods, affecting agriculture, drinking water supplies, and hydropower generation. In arid regions, the impact is less pronounced but still significant, potentially leading to increased desertification. The study warns that these trends could worsen under future climate scenarios, as warming intensifies precipitation extremes and increases the number of dry days. This could lead to more frequent and severe water shortages, particularly in regions already vulnerable to climate variability.