John Ewert

Volcanologist, US Geological Survey

Guest

Volcanologist with the US Geological Survey, based at the Cascades Volcano Observatory in Vancouver, Washington

John Ewert on KCRW

Air travel in Europe is almost back to normal, although shifting winds have sent plumes of volcanic ash over Scotland and Scandinavia, forcing some airports to close again.

Are We Prepared for Volcanic Disruption?

Air travel in Europe is almost back to normal, although shifting winds have sent plumes of volcanic ash over Scotland and Scandinavia, forcing some airports to close again.

from Which Way, L.A.?

Airports in Europe are back in business, although shifting winds have sent plumes of volcanic ash over Scotland and Scandinavia, forcing some airports to close again.

Are We Prepared for Volcanic Disruption?

Airports in Europe are back in business, although shifting winds have sent plumes of volcanic ash over Scotland and Scandinavia, forcing some airports to close again.

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