Saturday, Jan 5, 2013 - 3:00 PM
"Doomsday Volcanoes"
The eruption of Iceland's Eyjafjallaj?kull volcano in 2010 turned much of the northern hemisphere into an ash-strewn no-fly zone. But Eyjafjallaj?kull may be just the start. Katla, an Icelandic volcano 10 times bigger, has begun to swell and grumble. G
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