Climate Matters
Earth Day Trends
Happy Earth Day! Since the first Earth Day celebration in 1970, yearly temperatures have warmed significantly across the U.S. Explore the fastest-warming cities in our handy Earth Day toolkit.
Related Climate Matters
See all Climate MattersClimate Matters © 2021 by Climate Central is licensed under CC BY 4.0
This license grants permission to use, distribute, and reproduce all text, graphics, and multimedia content published on this page in any medium, provided that Climate Central is credited per the CC BY 4.0 license.
Permission to use data and other materials published on this page is granted for non-commercial uses, commercial news purposes, and educational purposes as governed by Climate Central's Terms of Use.