Slovenia ranked 15th worldwide on the 2008 Environmental Performance Index, a list of countries rated on environmental indicators and policy by a team from Yale and Columbia universities.
Switzerland topped the list of 149 countries; Niger’s ranking was the worst. Slovenia ranked lower than its neighbor Austria (6th), but higher than the rest of the countries that border it: Italy (24th), Hungary (23th), and Croatia (20th). The United States ranked 39th.
The index “ranked 149 countries on 25 indicators tracked across six established policy categories: environmental health, air pollution, water resources, biodiversity and habitat, productive natural resources, and climate change,” the study said.
How Slovenia’s Score Breaks Down
Jennifer Dorroh 
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