Dust of the desert: Sahara Sky over central Europe's windmills

Sometimes the sky is yellow, sometimes the dust of the desert comes from Africa. He paints the sky over central Europe's windmills in poisonous colors. Looks like a toxic accident, but it is only sandAfter a short and very cold winter the weather was very warm for the last days, but now it chenges back to normal - and when it starts to rain the water will be red like blood they say.