Ozone Hole Shrinks Unexpectedly
In October, scientists reported that the ozone hole over the South Pole was the largest it has ever been. By November, it had reached the area of Puentas Arenas, Argentina. For the first time, a city was under an area of the sky stripped of ozone.
The hole in the ozone layer has appeared over Antarctica every year since 1978. Ozone absorbs harmful ultra-violet light from the sun. Too much ultra-violet can cause skin cancer, cataracts and suppress the immune system, and will destroy plant life on land and phyloplankton in the oceans, and cause blindness among unprotected animals.
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