A satellite captured the erupting of the Okmok Caldera volcano on Umnak Island in Alaska in July 2008. The volcano spewed both steam and ash. NASA/AP hide caption

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Who Determines When Airways Are Safe From Ash?

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This infrared image shows ash spewing out of Iceland's Eyjafjallajokull volcano. It was taken April 17 by a NASA spacecraft. Hotter areas, shown in red, can be seen at the ash plume's base. NASA/JPL/EO-1 Mission/GSFC/Ashley Davies hide caption

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Tracking Volcano Ash To Improve Flight Safety

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Rail Service Benefits From Flight Cancellations

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Flower Industry Wilts From Volcanic Ash Disruptions

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British Government Criticized For Travel Chaos

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Korean Air cargo planes sit idle on the tarmac at the Incheon International Airport in Incheon, west of Seoul, South Korea, on Monday. Every day, on average, 10,000 tons of goods are airfreighted between Asia and Europe. But none of that has moved for the past week after Iceland's volcanic eruption. Lee Jin-man/AP hide caption

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Volcanic Ash In Europe Halts Airfreight In Asia

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A Letter From My European 'Volcation'

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U.S. Airlines See Major Disruption, Some Losses

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It's Not Just Passengers Trying To Catch A Flight

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Germany Criticized Over Massive Flight Restrictions

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Planes, Trains, Automobiles And Volcanic Ash

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European Flights Resume But Backlog Remains

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Flight Delays Stall Fresh Veggies To Britain

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