Chemicals are ____ the ozone layer The ____ is earth's sunscreen, and it's really fragile. The ozone layer filters out more than 90 percent of the harmful UV ____ coming from the sun. ____ were thought to be a great invention, but it actually damages the ozone layer. In 1985, scientists discovered the Antarctic ____, and this was a truly alarming discovery. We now know that CFCs are the ____ of the ozone hole. The Montreal Protocol has actually delayed ____ by more than a decade. Montreal has become the brake pedal for stopping ____. By the 2030s, we'll be avoiding millions of new ____ cases per year with a number that would only grow. If we're lucky, we will live long enough to see the ozone hole ____ to its natural state.

Environment

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