Sign of the Apocalypse #40: Russia's mysterious and smelly orange snow

By Michael J.W. Stickings

Well, the title of this SOTA pretty much says it all. Here's the BBC:

Russia has flown a team of chemical experts to a Siberian region to find out why smelly, coloured snow has been falling over several towns.

Oily yellow and orange snowflakes fell over an area of more than 1,500sq km (570sq miles) in the Omsk region on Wednesday, Russian officials said.

Chemical tests were under way to determine the cause, they said.

Residents have been advised not to use the snow for household tasks or let animals graze on it.

"So far we cannot explain the snow, which is oily to the touch and has a pronounced rotten smell," said Omsk environmental prosecutor Anton German, quoted by the Russian news agency Itar-Tass on Thursday.

Lovely.