An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Heat Islands

UHI Mitigation: The Tucson Story

This page includes presentation and transcript PDFs from EPA's June 26, 2014 webcast, "Keeping Your Cool: How Communities Across the Country are Reducing the Heat Island Effect."

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.