NASA staff told everyone that the ozone hole, which now exists in our atmosphere, gradually decreases. According to scientists she could disappear before the end of this century.
NASA reported that today the ozone layer begins to recover. Today the area of the hole in the ozone layer becomes 12 million square miles. But scientists project after thirty years it could be reduced to 8 million square miles. And before the end of the century and completely disappear.
The ozone layer performs a very important function. After all, it is a barrier between humanity and the sun. It is known to ultraviolet light, which emits sun, repairs harmful effects on human health.
The ozone hole was the result of Freon gases that are released into the atmosphere in the course of industrial activity. The first ozone depletion emerged in the second half of the last century. And in the 1980s there was a huge over Antarctica ozone hole. Why there? Because ozone quickly crumble under the influence of a very low temperature.
After this world to think seriously about protecting the ozone layer. And in 1987 in Montreal, signed a protocol, which were made all the harmful substances that can destroy ozone. Two years later he joined the force, and much of humanity has ceased to throw out illegal CFCs.
This improvement in production has yielded positive results. And in 2006, the ozone hole has stopped growing. Then, some scientists have speculated that it could be delayed until 2060. But now NASA does more realistic forecasts in this respect.
But NASA also reported bad news. As it turned out the carbon dioxide level in the atmosphere has increased so much that now reaches a very large volumes. This is another important issue to solve it is not yet possible.
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