The Article discusses Ecological Sustainable Development and the factors that lead to the ecological degradation in the context of Urbanization. Population growth is the key factor for the environmental urban pollution. Rapid industrialization is taking place at the cost of the ecology causing noise pollution, air pollution etc. Urban transportation is also the major factor for the environment pollution. The implications of sustainable development can be effectively addressed only through international co-operation in developing, accessing and diffusing appropriate knowledge and technology, especially for developing countries. By improving human settlement, creating environmental awareness in the citizens, implementation of integrated planning and management we can improve the sustainability of the environment. International co-operation to develop appropriate technologies for sustainable development should start with the identification of local needs. The precautionary approach is to be applied by states according to their capabilities for the substantiating the environment for the present and the future generations.