Brazilian Meteorological researchers Metsul have issued a black rain warning for the southern ... State of Rio Grande do Sul where the sky's color has experienced unusual changes as a result ...

with black being the most severe - at 11.05am, and finally down to amber at 11:45am. 11 things you didn’t know about the rain The government announced that classes would be suspended on Monday ...

Even though it has accepted a new court ruling that all victims in Hiroshima exposed to radioactive “black rain” from the 1945 atomic bombing should, in principle, be listed as hibakusha ...