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The Environment Performance Index (EPI) is a summary of the sustainable development status of 180 countries around the world. The index uses 32 performance measures for the following 11 issue categories:

  1. Air quality
  2. Sanitation and drinking water
  3. Heavy metals
  4. Waste management
  5. Biodiversity and habitat
  6. Ecosystem services 
  7. Fisheries
  8. Climate change
  9. Pollution emissions
  10. Agriculture 
  11. Water resources

These categories track the performance and progress towards the two main policies, environmental health and ecosystem vitality. EPI provides a scorecard after analyzing the environmental performance of the country. The EPI highlights toppers and laggards in the environmental performance, and provides viable guidance for the countries seeking a sustainable future.


As a composite index, the Environmental Performance Index aggregates the data of many sustainability indicators into one particular number. The data for EPI comes from trusted third-party sources, such as international government agencies, NGOs, and academic research centers. From the data provided EPI draws an indicator scale of 0-100 (from worst to best performance). At the end, the scores of each country are weighed and aggregated into issue categories and then into EPI score. The EPI index shows which countries can best solve the environmental challenges. For the first time, the 2020 EPI rankings included waste management metric and an indicator on CO2 emissions. 

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