Water resources Climate change will lead to more precipitation - but also to more evaporation. In general, this acceleration of the hydrological cycle will result in a wetter world. Precipitation will probably increase in some areas and decline in others .
Climate models are still unable to make precise regional predictions.
Meanwhile, the hydrological system is also responding to other human activities such as deforestation, urbanization, and the over-use of water supplies. Changing precipitation patterns will affect how much water can be captured. Several models suggest that downpours will become more intense. This would increase floods and runoff while reducing the ability of water to infiltrate the soil. Changes in seasonal patterns may affect the regional distribution of both ground and surface water supplies.