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If you have been following international weather news, you will know that unusual orange-tinted snow has been occurring in parts of Europe. You might wonder why this is happening. Some pink-tinted snow is caused by algae that grow in the snow. But in this case, the orange coloring is coming from Saharan dust which is blowing off the Saharan Desert into Europe. The dust is deposited onto the top of the snow, making it orange in color. You can see pictures and read more about it in EarthSkyhere.
Satellite image from March 22, 2018, showing Saharan dust being blown northwards across the Mediterranean Sea. Image via ESA.
