Icelandic Ash Triggers Dozens of Flight Cancellations

The Icelandic volcanic eruption triggered dozens of flight cancellations on Tuesday and an emerging backlash from airlines concerned that regulators are being too hasty in deeming airspace unsafe.

The ash cloud from Grimsvotn, the country's largest volcano, spread south and west towards the U.K., and authorities in continental Europe initiated contingency plans, though concerns emerged that regulators had not absorbed the lessons from the mass airspace closures following a similar eruption last year. That eruption led to the biggest shutdown of European airspace since World War II.

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