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AlphaGeo Report Ranks Global Cities by Climate Risk and Resilience
Key points
- AlphaGeo's CRRI assessed 72 large cities for climate risk.
- Adaptation measures can reduce climate risk by up to 33 points.
- South Asian cities like Ahmedabad and Dhaka show high risk and moderate adaptation.
- Chicago, Paris, and Nairobi are among the most resilient cities.
- Chinese megacities demonstrate high adaptation efficiency.
Climate Risk Assessment in Global Cities
AlphaGeo's Climate Risk & Resilience Index (CRRI) evaluated 72 of the world's largest cities. The analysis differentiated between raw physical exposure to climate hazards and resilience-adjusted risk (RAJ), which accounts for existing adaptation measures. This approach reveals the gap between a city's risk profile and its adaptive capacity.
Adaptation's Role in Mitigating Risk
The report found that geography is not the sole determinant of climate risk. Cities with similar physical risk scores showed up to a 33-point difference in RAJ scores due to varying adaptation measures. This indicates that resilience is significantly influenced by policy and investment in adaptation, rather than just geographical location.
Regional Disparities in Resilience
South Asian megacities, including Ahmedabad, Hyderabad Pakistan, Multan, Dhaka, Kolkata, and Lahore, face a combination of extreme physical exposure and only moderate adaptation performance. In contrast, cities such as Chicago, Addis Ababa, Melbourne, Barcelona, Buenos Aires, Paris, and Nairobi demonstrated high resilience, scoring below 14 on the RAJ scale. Chinese megacities like Beijing, Tianjin, Shenzhen, and Shanghai showed high adaptation efficiency, effectively converting high physical exposure into lower residual risk.
Methodology Overview
The CRRI scores cities across six physical climate risk hazards: inland flood, coastal flood, heat stress, drought, wildfires, and hurricane wind. It combines this with proprietary data on location adaptation capacity to produce both an unmitigated physical risk score and a mitigated, resilience-adjusted risk score (RAJ).
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Reporting from
AlphaGeo's Climate Risk & Resilience Index (CRRI) analyzed 72 major cities, distinguishing between physical exposure and resilience-adjusted risk to assess adaptive capacity. The report highlights that adaptation measures significantly reduce climate risk, with South Asian megacities facing high unmitigated risk and lower adaptation performance compared to European, African, and Latin American capitals.