NOVA

DOOMSDAY VOLCANOES

WEDNESDAY, JANUARY 2 @ 10:00PM

In April, 2010 the eruption of Iceland’s Eyjafjallajökull volcano turned much of Europe into an ash-strewn no-fly zone, stranding millions of travelers. But was Eyjafjallajökull just the start? Now, an even more threatening Icelandic volcano, Katla, has begun to swell and grumble. Two more giants, Hekla and Laki, could erupt without warning. Iceland is a ticking time bomb: When it blows, the consequences could be global.

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