U.S. EPA

U.S. EPA @EPA

The stratospheric ozone layer is the Earth’s “sunscreen” which protects living things from too much ultraviolet radiation coming from the sun. Thanks to domestic and international actions, the ozone layer is on the way to full recovery. #ImprovingOurNationsAir — PolitiTweet.org

U.S. EPA @EPA

Through EPA’s regulatory and non-regulatory efforts, EPA and its partners have been phasing out the use of chlorofluorocarbons (CFCs) responsible for depleting ozone in the stratosphere. #EPAat50 #ImprovingOurNationsAir — PolitiTweet.org