While acid rain caused by sulfur dioxide is an environmental threat of the past (at least, for now), a new kind of acid is proliferating in rain water—as well as groundwater, ice cores, and even human ...

Edmonton 'A warning': Acid pollution threatens ecosystems in Alberta and Saskatchewan, study says 'If we continue to emit at this level, there will be ecosystem damage' ...

Darren Orf Fri, July 25, 2025 at 6:30 AM PDT 3 min read Scientists Are Warning of A New Kind of Acid Rain Photography Manish Sinha - Getty Images ...