2022-10-23, 13:40
How Safe are U.S. Rivers 50 Years after the Clean Water Act?
https://www.scientificamerican.com/artic...water-act/
Millions of miles of U.S. rivers have dramatically improved in the half-century after the Clean Water Act, but climate change and other types of pollution still pose threats
https://www.scientificamerican.com/artic...water-act/