The document discusses the challenges of rapid urbanization and the need for sustainable "smart cities" of the future. It notes that by 2050, 70% of the world will live in urban areas. To develop sustainable cities, we must act now to find ways to support urban populations through creating energy efficient neighborhoods, green urban design, civic planning around human scale and diversity, and technologies that strengthen connections between cities and lessen environmental impacts. This will motivate innovation, international business, urban entrepreneurship, better environmental quality, more jobs, wealth, and overall improved quality of life for citizens.