Observatoire des droits humains (anglais seulement)

Most Saharan dust is generated by ‘hidden thunderstorms’ high above the desert

(Version anglaise seulement)

par Richard Washington, Professor of Climate Science, University of Oxford

When Saharan dust reaches the UK and Europe, as a huge country-sized cloud did over the past few days, it can transform the sky. Tiny particles drifting in the atmosphere scatter blue light while allowing reds and oranges to reach us intact, producing beautiful sunsets.

But these striking displays are also a reminder of how connected the Earth is. Dust drifting over my head in England may have rested on the dry surface of the Sahara…

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