Dispatch: That Cloud of Ash Over Europe

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Ash from a volcanic eruption in Iceland has disrupted airline flight schedules all over Europe. The WHO warns that the ash could become a health risk as it settles to the ground, since inhaled particles can cause respiratory problems.

“The health effects at this point are not known to be significant, but who knows what could happen as the ash settles?” says Dr. Whelan. “It really puts into perspective the range of risk when it comes to unpredictable natural disasters.”