This document discusses strategies for making cities more sustainable, productive, green and equitable. It argues that most urban growth is occurring in the global south, in cities like Kolkata, India, and that current development patterns risk locking cities into car-dependent and sprawling forms that hurt productivity, increase emissions and deepen inequality. However, compact and connected development centered around high-quality public transport can make cities more competitive, green and improve quality of life for all. The document calls for prioritizing such transformative solutions in cities to achieve climate goals and a more equitable urban future.