In many regions, greater aridity, shifting rainfall patterns and dwindling runoff from snow and ice in mountains may badly deplete rivers, lakes and aquifers.

• 在很多地方，随著乾旱的恶化、雨周期的改变、及高山溶雪的减少，河川、泊、及含水土层的蓄水量可能会因此减少。