Global Warming

Massive Ozone Hole

The ozone hole in the stratosphere above Antarctica reached its annual peak on Oct. 1, which scientists say was the largest and deepest in 15 years.

This was in contrast to an unusually small and short-lived ozone hole in 2019 caused by unusual weather conditions. “There is much variability in how far ozone hole events develop each year,” said Vincent-Henri Peuch, director of Europe’s Copernicus Atmosphere Monitoring Service. He added that it’s proof nations need to continue enforcing the Montreal Protocol, which bans emissions of ozone-depleting chemicals.

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