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Earth’s ozone hole rapidly shrinking following ban of ozone depleting chemicals

About three decades have passed since scientists made the devastating discovery that a massive hole had developed in the Earth’s ozone layer – the shield that protects us from the sun by absorbing most of its ultraviolet radiation – right over Antarctica. Recognizing the immensely dangerous potential of the situation, most of the world’s countries got together and signed the Montreal Protocol in 1987, which banned the use of chlorofluorocarbons (CFCs); man-made ozone-damaging chemicals. It would seem that their efforts have paid off, and though the hole in the ozone layer remains large (over 8 million square miles), it has stopped increasing in size, and actually seems to be shrinking.  Read more...

 

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