We got rid of acid rain. Now something scarier is falling from the sky.
In the 1970s, acid rain was one of the most serious environmental threats in North America and Europe. The air was so laden with pollution from coal power plants and cars at the time that it turned ...
National Geographic news4d
The Permian extinction—when life nearly came to an end
The Black Triangle gets its name from the coal burned by nearby power plants. Decades of acid rain generated by power-plant emissions have devastated the region's ecosystems. Yet the treeless ...