When humans hurt nature, Earth weeps. Its screeching wails rise towards the sky and rain down teardrops, not of blood or salt, but acid. Dubbed “acid rain,” this rain is a witch’s brew that has ...

The environmental crises of the past often seem to disappear—have problems like acid rain and smog been solved?

Here’s what you’ll learn when you read this story: 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 ...