The Environmental Sustainability Index (ESI) is a measure of overall progress towards environmental sustainability. The index provides a composite profile of national environmental stewardship based on a compilation of indicators derived from underlying datasets. This Web site provides access to the ESI report, underlying data, and associated maps for the Pilot 2000, 2001, 2002 and 2005 versions of the ESI. The documents made available here provide in-depth details on the analytical framework, quantitative methodology, and data sources that underlie each edition of the ESI. Note that because of data and methodological improvements to each subsequent version of the ESI, the country scores cannot be utilized in time-series analysis. We welcome criticisms, suggestions, and comments.
Yale Center for Environmental Law and Policy
250 Prospect Street
New Haven, CT 06511
Center for International
Earth Science Information Network (CIESIN)
PO Box 1000
61 Route 9W
Palisades, NY 10964
In Collaboration with:
World Economic Forum
91-93 route de la Capite
Joint Research Centre
Enrico Fermi 1 TP 361, 21020 Ispra
Visitors interested in environmental performance measurement may wish to download reports and data for the Environmental Performance Index (EPI).