Earth’s ozone layer is on the mend
For decades, the Earth’s ozone layer, which protects life on our planet from the sun’s harmful ultraviolet (UV) rays, has taken a beating from common chemicals used in everything from refrigerants to hairspray. But now the holes in the ozone layer are diminishing, thanks to a decades-long global effort to repair it, the World Meteorological Organization (WMO) confirmed yesterday.
Scientists first discovered a gaping hole over the Antarctic in 1985. A couple years later, countries around the world adopted the Montreal Protocol, a global effort to phase out “ozone-depleting substances.” And now, thanks to that work, scientists expect the ozone layer to start looking more like its normal, healthy self in the coming decades. That lowers the...
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