Read the entire Message :
"Cities are the most humanized of ecosystems but unfortunately for many people, especially the urban poor, they are also among the most inhuman of places. Air and noise pollution, and lack of access to clean water and green space are some of the negative consequences of unsustainable urban development that turn cities into inhospitable environments to live in. The plight of the inhabitants of the peri-urban areas of cities in developing countries, that is, the informal city, is increasingly acute. Cities also contribute to the degradation of environments far beyond their own borders through their demands for natural resources and because of waste disposal. This being said, if properly planned and managed, cities are also areas of human prosperity and hope, harbouring rich cultural as well as biological diversity. "