The hole in the ozone layer during the year 2000. It has shrunk considerably since then. Photo / NASA
The amount of so-called CFCs in the atmosphere is starting to decrease again. Their numbers had fallen sharply in recent years, until the year 2018 when research showed the illegal production of the substances in eastern China. That production was stopped and it seems that it was enough to turn the trend in the right direction again. BBC reports.
CFCs are a dangerous ozone layer of the earth, which protects the earth from the sun’s ultraviolet rays. A hole in the ozone layer was discovered in the year 1985. During the year 1987, the countries of the world agreed to ban the use of substances that cause depletion of the ozone layer, and their use was limited from year to year until the blue ban took effect. value for the year 2010.
Since then, the hole in the ozone layer has shrunk considerably. The results have been seen as indicative of what can be achieved when the nations of the world agree to take action for the benefit of the environment.