Urban sustainability involves redesigning cities to balance ecological, social, and economic needs, ensuring a high quality of life without exceeding natural capacities. By promoting dense, energy-efficient, and mixed-use development, it reduces pollution, waste, and carbon footprints—crucial since cities produce over 70% of energy-related 

. Key approaches include expanding green transit, implementing smart technology, enhancing social equity, and integrating green spaces, transforming urban areas into resilient, self-sufficient communities.