
U.S. EPA @EPA
Did you know... the Great Lakes are one of the world’s largest surface freshwater ecosystems? They make up 84% of North America’s surface fresh water and about 21% of the world’s supply of surface fresh water. Learn more about EPA’s work to restore them: https://t.co/bSnQsb5DlS https://t.co/1VY9DS8V02 — PolitiTweet.org