Help us improve our global wastewater indicator

We need your help! In 2014, the Environmental Performance Index created a first-of-kind indicator on national-level wastewater treatment. We devoted a ton of resources and staff time to sifting through a wide variety of data sources, but we know it was just a start. A new interactive map will crowdsource your feedback to help us refine and improve this important indicator of both ecosystem and human health. The video below explains how. Access the map here: