Some of these effects apply also to climatic conditions. That awareness informs the numerous international conventions on the management of the environment. Many in our country, regard the cities as offering the prospect of greater opportunities and a better quality of life compared to the deprivation they have experienced in the rural areas. Not surprisingly South African cities are growing at an astronomical and unplanned rate. These growing populations, accompanied by heavy industrial activity and intense energy use in urban areas, have a direct bearing on local climate, the environment, agriculture and on human health.
Urbanisation has serious consequences for the availability and use of fresh water resources.
As South African cities expand, so do their water requirements for domestic, agricultural and industrial use. Research indicates that most cities in the developing world will probably experience water shortages by the beginning of the 21st century. South African cities are no exception. It is therefore the responsibility of the government to make provision for future fresh water resources in the light of the population growth, particularly in cities. The Weather Bureau is already engaged in important research activities regarding precipitation forming processes in clouds and the possibility of artificially enhanced rainfall.