1) Nearly 4 billion people currently live in cities, with numbers expected to grow by 2.5 billion by 2050, primarily in Asia and Africa. These regions lack resources to adapt to rapid urbanization. 2) Cities in developing countries will face risks from climate change like flooding and disease due to lack of planning capacity as cities double in size every 15-20 years. Designing new, future-ready cities is necessary. 3) For cities to be sustainable and meet citizens' needs, planners must balance economic growth with human values by preserving cultural heritage, community ties, and considering all age groups, not just the economically productive.