Reuters - Plane-free skies over Europe during Iceland's volcanic eruption may yield rare clues about how flights stoke climate change, adding to evidence from a closure of U.S. airspace after September 11, 2001, experts say.
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Reuters - Plane-free skies over Europe during Iceland's volcanic eruption may yield rare clues about how flights stoke climate change, adding to evidence from a closure of U.S. airspace after September 11, 2001, experts say.
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