Question

give two reasons why we need sustainable cities​

Answer 1

Answer:

bcoz if there is no sustainable developed cities there will be no resource left for future generations

Answer 2

While there, I called for the United Nations to make cities the centerpiece of its forthcoming Sustainable Development Goals, which are intended to replace the Millennium Development Goals that have guided its economic, social, and human development programs since 2000. In his closing remarks to the Forum, Joan Clos, the Executive Director of the United Nations Human Settlement Program and former mayor of Barcelona, also called for cities to be at the at the forefront of the new goals, a point that was echoed by Eugénie Birch, a professor of Urban Research at the University of Pennsylvania and the chair of the World Urban Campaign.