Environmental Performance Index

The Environmental Performance Index (EPI) is a method of quantifying and numerically marking the environmental performance of a state's policies, highlighting the degradation of the planet's life-supporting systems on which humanity depends. A world economy that continues to rely heavily on fossil fuels translates into ongoing air and water pollution, acidification of the oceans, and rising concentrations of greenhouse gases in the atmosphere.

Source: Wikipedia — Environmental Performance Index (CC BY-SA 4.0)