U.S. EPA @EPA
In the 1980s, acid rain was a major environmental threat. Our scientists banded together with dozens of partners to take on the challenge. Read how their work has helped reduce acidity in lakes, protect aquatic life, and more: https://t.co/mGUEgsTwTl #EPAat50 https://t.co/L6OpPdeBT6 — PolitiTweet.org
