How Climate Resilient Are the World’s Largest Cities?
Climate Risk and Adaptation in Global Cities
1. Executive Summary
This report analyzes the 72 of the world’s largest cities through the lens of AlphaGeo’s Climate Risk & Resilience Index (CRRI). It separates raw physical exposure from resilience-adjusted risk (RAJ) — what we call the adaptation delta — to reveal which cities are genuinely protected and which face a dangerous gap between their risk profile and their adaptive capacity.
Key Takeaways
Geography is not destiny. Cities with near-identical physical risk scores diverge by as much as 33 RAJ points depending on the adaptation measures in place — demonstrating that risk is not fixed, and that resilience is a function of policy and investment, not geography alone.
South Asian megacities face a compounding crisis. Ahmedabad (RAJ 41), Hyderabad Pakistan (41), Multan (38), Dhaka (36), Kolkata (35), and Lahore (35) combine extreme physical exposure with only moderate adaptation performance.
European, African, and Latin American capitals outperform. Chicago, Addis Ababa, Melbourne, Barcelona, Buenos Aires, Paris, and Nairobi all score below 14 on the RAJ scale, making them among the most resilient major cities globally.
Chinese megacities are closing the gap. Beijing (50%), Tianjin (49%), Shenzhen (49%), and Shanghai (46%) lead globally on adaptation efficiency — consistently converting high physical exposure into substantially lower residual risk.
Mispriced risk is concentrated in South Asia. South Asia accounts for the majority of cities where residual RAJ scores remain high and adaptation rates remain comparatively low relative to the scale of physical exposure.
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