As extreme weather wreaks havoc around the globe NPR's Throughline looks at a natural disaster more than 200 hundred years ago that had far-reaching effects. This week, how the eruption of the Icelandic volcano Laki awed, terrified and disrupted millions around the world and changed the course of history.

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Outside/In was produced this week by:

Sam Evans-Brown with help from Taylor Quimby, Justine Paradis, and Jimmy Gutierrez.

Erika Janik is our executive producer.

Our theme music is by Breakmaster Cylinder.

Throughline is produced by Rund Abdelfatah and Ramtin Arablouei, Jamie York, Lawrence Wu, Lane Cappelin-Levinson, Lu Olkowski and N'Jeri Eaton.

Fact checking by Kevin Volkl.

Throughline’s music is composed by Ramtin and his band, Drop Electric.

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