Powerful Storms Linked to Depletion of Ozone Layer, Study Says

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A new study warns that a surge in powerful storms, perhaps linked to a warming climate, could be causing a depletion of the planet’s protective ozone layer.

Writing in the journal Science, Harvard researchers explain that water vapor inserted into the normally dry stratosphere by strong thunderstorms is triggering chemical reactions with now-banned chlorofluorocarbons, CFCs, essentially creating ozone-destroying conditions identical to those occurring over the Antarctic, high southern latitudes, and parts of the Arctic. That, in turn, could lead to an increase in UV radiation reaching the earth’s surface, posing a higher risk of skin cancer for humans as well as potentially harmful conditions for some plants and crops.

Lead author James G. Anderson said more research is necessary, including direct measurements of the effects of water vapor on ozone chemistry. But he said that given recent research linking climate change to an increase in extreme weather events, these findings could portend increased ozone loss in years to come.

“It’s the union between ozone loss and climate change that is really at the heart of this,” Anderson told the New York Times. “Now, they’re intimately connected.”

Article appearing courtesy Yale Environment 360.

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Yale Environment 360 is an online magazine offering opinion, analysis, reporting and debate on global environmental issues. We feature original articles by scientists, journalists, environmentalists, academics, policy makers, and business people, as well as multimedia content and a daily digest of major environmental news. Yale Environment 360 is published by the Yale School of Forestry & Environmental Studies and Yale University. We are funded in part by the Gordon and Betty Moore Foundation and by the John D. and Catherine T. MacArthur Foundation. The opinions and views expressed in Yale Environment 360 are those of the authors and not of the Yale School of Forestry & Environmental Studies or of Yale University.

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