If you're curious about acid rain, you should know that normal rain falls at 5.6 on the pH scale, while acid rain usually ...

Scientists and regulators are divided over the threat posed by rising levels of a chemical called TFA.

Global rainfall is increasingly contaminated with trifluoroacetic acid (TFA), a persistent chemical raising concerns among ...

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 ...

A forest watered by acid rain may be less able to slake its thirst. That’s one finding from a decades-long experiment in the Appalachian Mountains, where the U.S. Forest Service since 1989 has ...

Is acid rain coming down over Ohio farmlands? Social media posts claim this is an effect of the response to the Feb. 3 train derailment in East Palestine, Ohio. A woman in a Feb. 19 Facebook video ...

It’s not going to “rain acid” on the Big Island. There wouldn’t be enough of it to do much more environmental harm than what occurs there on a daily basis (Kilauea has been erupting since ...

The video was originally posted on TikTok Feb. 17. So, is acid rain pouring down over Ohio because of the train’s derailment? We found no proof of that. Here’s what we know.