IDRC and the management of sustainable urban development in Latin America
Today, the built environment is the most significant human environment. Globally, half of humanity now lives in urban settlements, while Europe and North America is 80% urbanized. These urban settlements have a disproportionate impact on the natural environment, consuming 75 percent of the world's resources and producing most of its waste (Sweet, undated).
The link address is: http://www.idrc.ca/lacro/docs/conferencias/hancock.html