Climate risk index 2025: Who suffers most from extreme weather events? Weather-related loss events in 2022 and 2000 to 2022
The Climate Risk Index (CRI) analyses how climate-related extreme weather events affect countries and, in doing so, measures realised risks' consequences for countries. The backward-looking index ranks countries according to economic and human effects on them (fatalities and affected, injured, and homeless people), with the most affected country ranked first. The CRI aims to visualise how extreme weather events affected countries, from two years preceding publication and over the previous 30 years. The CRI is based on data from the EM-DAT international disaster database, World Bank, and International Monetary Fund. It examines both absolute and relative impacts to create a ranking of countries based on six indicators (economic losses, fatalities, affected people: absolute and relative for each) (see chapter 6 for details on the methodology).
The CRI findings, in a broad context, are both a call for mitigation, adaptation, and loss and damage action, and a reminder of the heavy toll climate change is inflicting globally on communities and nations. The CRI aims to contextualise international climate policy debates and processes and see the climate risks countries are facing. It simplifies the aggregation and understanding of climate-related extreme weather events' impacts across different regions and periods. The most impacted countries rank highest. These countries should take the CRI results as a warning of their risk of frequent events or rare but extraordinary extreme events. Climate impacts' human losses and economic costs will continue to rise unless there is a substantial shift in mitigation ambition and financial support.
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