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Scientists still waiting for clear signs of ozone hole healing

Scientists still waiting for clear signs of ozone hole healing

Reuters - Irene Klotz

SAN FRANCISCO (Reuters) - - Earth’s upper atmosphere is still so saturated with ozone-eating chlorine that it will take about another decade for evidence that a nearly 25-year-old ban on such destructive chemicals is working, scientists said. Full recovery of the ozone layer, which shields Earth …

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