Getting rid of the “forever chemical” Trifluoroacetic acid, or TFA, found in everything from drinking water to human blood, ...

After an air-quality agreement Canada signed in the 1990s, P.E.I.'s precipitation no longer falls into the range of acid rain ...

Normal rain falls at 5.6 on the pH scale. Acid rain, however, usually falls between 4.2 and 4.4. Any type of precipitation that has more acid in than usual is typically classified as acid rain.

And given the success of past work to address acid rain — salmon production tripled on the West River after the liming project started there in 2005, for example — using this approach means ...

Some U.S. scientists warn that the Environmental Protection Agency’s proposed deregulations could lead to the return of acid rain and contaminated soil for parts of Canada.

When the gases produced for electricity or by cars combines with the oxygen and water already in the air, it forms what is known as acid rain — or rain with a pH between 4.2 and 4.4.

One TikTok video (reminder: this is misinformation) with more than three million views dismisses several global threats as "politics," listing off a series of examples: "In the '80s, it was acid rain ...

Science Acid rain has lingering impact on Canadian lakes: study CBC News · Posted: Nov 27, 2008 11:36 AM PST | Last Updated: November 27, 2008 ...

Acid rain damage across Europe and North America in the 20th century also showed the world how air pollution, which doesn’t stop at borders, can become an international crisis requiring ...

Acid rain used to be a bigger problem, but policies like the U.S. Clean Air Act of 1990 helped mitigate its impact on our planet.