Our Earth Planet is the third planet in the Solar System . It is surrounded by an Ozone Layer which is also known as Ozone Shield . It is a thin layer in the atmosphere at an altitude of about 20-30 Km , That has a high Concentration if Ozone gas . It is made up of three atoms of Oxygen and is represented as O3 . Ozone Layer plays a big role in protecting the Earth from the Sun’s Ultraviolet radiation . As it absorbs 95%-99% of the Sun’s medium- frequency Ultraviolet light But now atmospheric researches have revealed that the Ozone Layer was being depleted by chemicals that are been released by Industries , which had created holes in the Ozone Layer . As a result of this holes , the Ultraviolet radiation of the Sun can easily enter in our Earth . This rays are very harmful to living beings . Because it can cause diseases like Skin Cancer and can also alter the climate drastically . The Ozone Layer is not uniform throughout the Earth Planet . It is found in a thick layer at some places and a thin layer at others . If this layer becomes too thin , it cannot stop the Ultraviolet rays from entering the Earth Planet and we say that a hole is been formed in the Ozone Layer . Antarctica has the biggest Ozone Hole followed by the Arctic Region and the Tibetan Plateau . In this places , the layer was naturally thin , but over the years due to Air Pollution , these holes have grown bigger and thinner Hence they are a serious cause of worry across the World . But now as people have understood the need the need of Ozone Layer , it has been finally stopped in today’s world and there are signs that it can grow grow back . Now this is because the Countries around the world have agreed and signed the Montreal Protocol to limit or to stop the production and use of CFCs and HCFCs . 197 countries have ratified this Protocol which has reduced CFC production by 98% today . Today there are better CFC free refrigerant available that do not pollute the atmosphere . Almost all the Air- conditioners and refrigerators that we use today do not contain these harmful pollutants . Therefore it is our duty to avoid Air pollution to conserve our Ozone Layer from depletion.
Queency Dias
C18-412
