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Issue Rankings

The Environmental Performance Index ranks national-level environmental performance based on scores in nine Issue Categories. Select one of the Issue Categories below to view information on each country's performance and trend, as well as sort by rank, score, or alphabetically by country name.
Environmental Health
Health Impacts
Air Quality
Water and Sanitation
Ecosystem Vitality
Water Resources
Biodiversity and Habitat
Climate and Energy


The Environmental Performance Index (EPI) is constructed through the calculation and aggregation of 20 indicators reflecting national-level environmental data. These indicators are combined into nine issue categories, each of which fit under one of two overarching objectives. Click on "Learn More" to explore the complete methods.

Data Explorer

The EPI Data Explorer allows users to dynamically investigate global data: Compare environmental performance with GDP, population, land area, or other variables; create a chart that highlights all 178 ranked countries, only those in a specific region, or a custom-defined group. There's a lot more to the data than rankings, so dive in.

Country Rankings

See how all 178 countries rank on the 2014 EPI.