Ozone depletion began decades before discovery of ozone hole, scientists find

PHYSorg
Jun 29, 2026, 3:00 pm181 ptsTrendingTop
The Antarctic ozone hole was discovered in 1985, when scientists observed a severe depletion in Earth's protective layer of stratospheric ozone. Industrial chemicals known as chlorofluorocarbons (CFCs), then widely used as refrigerants, propellants, foam-blowing agents and solvents, were at the root of the…

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