“Ozone is a fascinating and crucial component of our atmosphere. While most of the oxygen in the atmosphere is made up of two oxygen atoms bound together (O2), ozone consists of three oxygen atoms (O3). It has the important property of absorbing high-energy ultraviolet (UV) radiation, shielding the Earth’s surface from these damaging rays. Such UV radiation is bad for humans as well as plants and animals. In fact, it was the development of an ozone layer in our atmosphere that allowed life to flourish on land.
“In the early 1970s, scientists theorized that certain man-made chemicals, known as chlorofluorocarbons or CFCs, had the potential to reduce the amount of ozone in our atmosphere — this became known as ozone depletion. Given the crucial role of ozone in maintaining a livable environment, this caused great concern.
“Even before evidence of actual ozone depletion was observed, countries began to take action…”
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