Sentences with phrase «thirst of growing populations»

Wherever a forest is converted to a grassland, or a grassland to desert, or barren ground is created, maximum skin surface temperatures rise by 10 to 40 °F.8 Also to quench the thirst of growing populations, extraction of subsurface waters has lowered the water table.9 As the water table drops below the reach of roots, soil moisture is reduced and plants die.