Ozone losses of more than 60 percent have occurred in the Arctic stratosphere near 60,000 feet (18 kilometer) in one of the coldest winters on record. This is one of the worst ozone losses at this altitude in the Arctic.
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Ozone losses of more than 60 percent have occurred in the Arctic stratosphere near 60,000 feet (18 kilometer) in one of the coldest winters on record. This is one of the worst ozone losses at this altitude in the Arctic.