The Hole in the Sky Is Actually Healing 🌍 #Shorts #LessonToday
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Three takeaways
In the 1980s scientists found a hole in the ozone layer over Antarctica, caused by chemicals from spray cans and fridges.
In 1987 the world signed the Montreal Protocol to phase them out, and over time every country joined.
Nearly 99% of the banned ozone-depleting chemicals have now been phased out, and a UN-backed science panel says the ozone layer is on track to recover to 1980 levels by around…