The term “rare earth element” (REE) is somewhat misleading — those 17 squares at the bottom of the periodic table appear fairly plentifully in the earth’s crust. But that doesn’t […]

As well-known as radium is for its harmful effects — the Radium Girls might come to mind — the idea of widespread water contamination can be a scary one. But […]

It can be hard to worry about contamination by a substance that regularly shows up in children’s vitamins. But selenium pollution via industrial waste can impair our waterways. The margin […]