Harms to the following:
- Reserve of resources quickly depleted.
- Deforestation to expand agricultural land leads to ecological imbalances.
- Generate concentrated sources of waste that exceed the capacity of self-degradation of the natural environment in urban areas, agricultural and industrial areas.
- The gap in the rate of population growth between industrialized and developing countries is rising, leading to poverty in developing countries and excess consumption in industrialized countries. The growing disparity between urban and rural areas, between developed industrial and least developed countries, leads to the immigration of all kinds.
- The rise of the urban population and the formation of big cities - megacities make the urban environment at risk of severe degradation. The supply of clean water, houses and trees can not meet the population growth. Pollution of air and water increased. Social evils and the problem of social management in urban areas are increasingly difficult.