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The ozone hole is at its smallest size since 1988, thanks to hot air and a massive international effort

from Popular Science

One of the layers of atmosphere that protects all life on our planet is the width of two pennies, and hangs out six to ten miles above the Earth's in an environment that human activity made extremely hostile. Every year when winter ends and warmer weather returns to Antarctica, chemicals that we put into the air rip a hole in the layer. But this year, that hole is smaller than usual. more


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