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Sahara sand likes long journeys: https://www.nasa.gov/content/goddard/nasa-satellite-reveals-...

whoah! I had no idea transatlantic Saharan dust was a thing, let alone that it delivers phosphorous to things growing in South America!

That’s why we’re so fucked if we ever manage to break global weather in such a way that sand doesn’t go from the Sahara to the rest of the world anymore.

Richard Hammond did a pop-science series about the weather and it talked about how dust from deserts can move very far. It's an interesting watch: https://youtu.be/DeYvP2A3QvU&t=8m20s

The dust particles bounce against one another and propel some of the particles higher and higher up into the atmosphere. Then the winds can carry them very far.

Real-time simulation of the Chixculub impact that caused the Cretaceous-Paleogene extinction event: https://youtu.be/ya3w1bvaxaQ