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Ozone layer declining over populated zones: study
JAY GORY, MANAGING EDITOR, science
The ozone layer that protects life on Earth from deadly ultraviolet radiation is unexpectedly declining above the planet's most populated regions, according to a study released Tuesday. Nearly three decades later, the "ozone hole" over the South Pole and the upper reaches of the stratosphere are showing clear signs of recovery. "In tropical and middle latitudes" -- home to most of humanity -- "the ozone layer has not started to recover yet," lead author William Ball, a researcher at the Swiss Federal Institute of Technology in Zurich, told AFP. read more


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