 This study proposes a geometrical optimization framework and model for designing compact, star-shaped cities that minimize the conflict between mitigating climate change and adapting to its impacts. The framework takes into account the economics and climate of cities, and demonstrates that urban design considerations depend on transport fuel prices. The results are particularly important for city planners of rapidly urbanizing cities in Asia and Africa who still have the potential to shape urban layout. This article was authored by Karl Pima and Felix Koitzig.