Problems of Ozone
Explain the problems of the ozone layer and what is being done to
Briefly, ozone is a gas that floats high up in the atmosphere
where it helps to shield the earth from ultraviolet radiation from the sun.
Some scientists have noticed lately that this thin layer of ozone gas is
getting thinner, an that the thinnest spot hovers over Antarctica at the south
pole. Some scientists believe that certain kinds of air pollution may destroy
ozone, and this may be causing the layer to gradually thin-out. To stop this
kind of air pollution from "chloro- fluorocarbons", the use of spray cans has
been outlawed and the type of chemicals being used in refrigerators and air
conditioners is being replaced with a new kind that is less harmful to ozone.
Because thinner ozone means more sunlight reaches the surface of the earth, it
may be easier to get a sunburn from staying out in the too long. That means
that you have to provide your own sun shield to make up for the weaker ozone
shield. Just wearing a hat in the summer when you are outside a lot will help
shade your skin. So will using Sun-block lotion or wearing long sleeves.
hundred years ago in the US it was fashionable for people to carry a "parasol"
to give shade from the summer Sunday. In Spanish, "parasol" means "for the
Sunday" - in other words a sunscreen. People who live in desert countries in
the Middle East and North Africa wear long white clothes to shield them from
the harsh sun. People who like to climb mountains have to take special
sunglasses and sun block.
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Update: June 2012