Record Ozone Hole Over Arctic In March Now Closed
Ozone depletion over the Arctic hit a “record level” in March, the biggest since 2011, creating the largest recoded ozone hole over the Arctic, but the hole has now closed, the UN World Meteorological Organization (WMO) said on Friday.
The springtime phenomenon in the northern hemisphere was driven by ozone-depleting substances still in the atmosphere and a very cold winter in the stratosphere.
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