and “Stop poisoning our children!” Low winds helped the thick grey layer of smog called “black sky” by the locals settle over the city of 1.2 million. The Chelyabinsk meteorological office ...

not just in Russia, but on Earth. For several weeks each year, the city announces an environmental alert they call "Black Sky." ...

(KUTV) -- Several people spotted a strange black circle in the sky above Salt Lake City Saturday evening, and some called into the station to ask what it was. One viewer, Miles James, sent us a ...