The serious increase in urban population, especially in the less developed countries will cause major problems in the future, when it comes to water pollution and demand. The issues we are dealing with today regarding the share and need for water quality will definitely increase if we don’t do anything. It is projected that in 2030 the world’s overall population will increase with 2.1 billion people, 2 billion of these will be an expansion concentrated in cities and towns. Because of employment and growth in the urban areas, half the world’s population will be living in urban areas in the future. This together with industrialization will result in an increasing demand for water and will have serious consequences on the environment. To improve the future situation everyone should be aware of the limited water resources. The problem will in the future affect us all. Whatever the use of water is, saving of it is possible. Water is wasted everyday and the waste will increase as well as the population.
The increased growth of industry, especially in South Asia and the least developed countries is a problem, when it comes to water pollution. Both water and air pollution will increase as the industry is increasing. Factories releases gas and oil, which is bad for the environment. Wastes from industry construction is also going to be a problem regarding water pollution, as it rains the water will run off into rivers and lakes.
The growth in fertilizer use in the less developed countries such as, sub-Saharan Africa, Latin America, west Asia North Africa, south Asia, East Asia haven’t increased as much as the developing and developed countries, because of little economic and the price of fertilizer.
The pollution is still there though; because of the high population and the low economy, they can’t afford water treatment plants. In the developing countries and developed countries, the use of fertilizer has grown a lot from 1959-2020 because of high economy and they have the money to afford the fertilizer. The high increase may cause a lot of problems, as the more fertilizers are used near water bodies, the higher the chances are that the water might become polluted. The fertilizer and other toxic chemicals are sucked into the ground and into the groundwater, which flows into lakes and rivers.