It was an unnerving effect of the 1991 Gulf War. Here's what happened, where it occurred and why is reached as far north as ...

Black rain is a phenomenon that occurs when soot and other contaminating particles present in the atmosphere mix with moisture and precipitate in the form of rain. Categories: Environment , Brazil ...

Hoping to change that, the Nagasaki Doctor & Dentist Association here on May 11 released a digital map of locations where radioactive “black rain” fell in the immediate aftermath of the city ...