There is about 5% of the earth’s surface which is said to have holes in the ozone layer. These are mainly around the north and south poles. Generally the amount of ozone is dropping by 4% every 10 years. eek!
Yeah, but the ozone layer changes from year to year, and I heard the holes move around. I think there was a hole over new zealand and people were getting bad sun burns- I don’t know if that is still happening.