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Geography

How Do Volcanic Eruptions Spread Ash Across Continents?

Quick fact

In 2010, Eyjafjallajökull's ash cloud disrupted over 100,000 flights across Europe — even though the volcano's ash was mostly fine particles that traveled thousands of kilometers.

Why this is interesting

How can a volcano in Iceland darken skies over Europe, and one in Indonesia change weather worldwide? The answer lies in a powerful conveyor belt high above you.