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UN Weather Body: Antarctic Ozone Hole Expands Due to Cold

Thursday, 29 October 2015 09:23 AM

GENEVA (AP) — The U.N.'s weather body says unusually cold high-altitude conditions have expanded the Antarctic ozone hole to one of the largest sizes on record, though the long-term trend remains one of shrinkage.

The World Meteorological Organizations notes regular, year-to-year variations in the hole, but says the expansion shows "we need to remain vigilant."

The agency said Thursday that NASA data on Oct. 2 showed the hole had reached 28.2 million square kilometers (10.9 million square miles), the widest recorded on that date, and has remained at a record size on the dates since.

The ozone layer sits high above Earth and protects against harmful UV rays. An international accord in 1987 to phase out use of ozone-depleting chemicals has underpinned hopes for recovery of stratospheric ozone worldwide by 2070.

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The U.N.'s weather body says unusually cold high-altitude conditions have expanded the Antarctic ozone hole to one of the largest sizes on record, though the long-term trend remains one of shrinkage.The World Meteorological Organizations notes regular, year-to-year...
EU,United,Nations,Ozone,Layer
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2015-23-29
Thursday, 29 October 2015 09:23 AM
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