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Ozone layer is improving – VIDEO


Deterioration of the ozone layer was considered the international crisis in 1980s. Based on the latest pieces of evidence, the ozone layer seems to be improving.

The ozone layer is enclosed around the Earth and represents the natural shield from the harmful ultraviolet radiation emitted by the sun. Ultraviolet radiation is known to cause skin cancer and cataracts and harm crops and marine plant life.

Many chemicals like aerosols were banned from its use in 1987 under the Montreal Protocol. These chemicals were responsible for the holes in the ozone layer. Chlorine is also one of the chemicals responsible for this.

Since the use of chlorine reduced, the ozone layer has shown signs of recovery. This was documented in studies conducted by NASA’s Stratospheric Aerosol and Gas Experiment (SAGE).

The recovery of the ozone layer will be monitored by the SAGE III instrument. This new instrument will be positioned on the International Space Station (ISS).

According to NASA project scientist Joe Zawodny, it is expected that the ozone layer will be going through the stage of recovery during the period from 2016 to 2020. It is expected that half of the damage caused from 1980 to 1997 will be patched up.

The scientists also have to establish the exact recovery pattern. This will help predict any future changes.

In addition to this, undeveloped nations have to be prevented from using harmful gasses.

According to Fatima Mede, more than 100 million cases of skin cancer will be prevented if all countries implement the Montreal Protocol. Other improvements will be observed in agriculture, and the number of cases of cataracts will decline .

Rwanda is one of the countries which still use some of the harmful gases. The plan of this country is to decrease the import of ozone-depleting refrigeration gas by 2020. They also have to find a way to stop illegal imports of cheaper but ozone-destroying gases.


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