Iceland volcano Iceland volcano

A view of a road closure to the Vattnajokull glacier, the site of the Bardarbunga volcano under the Dyngjujokull ice cap in Iceland, on Sunday. Scientists had worried that the volcano might spew steam and ash, but say now that it appears to have quieted. Vilhelm Gunnarsson/ Fretabladid/EPA/Landov hide caption

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Vilhelm Gunnarsson/ Fretabladid/EPA/Landov

Cancelled flights are shown at Germany's Tegel Airport. Germany has now reopened airports after officials determined volcanic ash in the air was not critical. Gero Breloer/AP hide caption

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Gero Breloer/AP