The ozone layer is the layer outside atmosphere which protects the surface of the Earth from the harmful Ultra-violet and infrared radiations causing dangerous diseases like skin cancer. Ozone layer depletion is also one of the causes of global warming; entering of harmful gases which helps in heating up the Earth but the other greenhouse gases like carbon dioxide, methane, that helps in heating up and also tears up the ozone layer making an “Ozone Hole”. Mostly the CFCs (chlorofluorocarbon) damages the ozone layer. So the ozone layer depletes due to these gases which allow the UV radiations to enter the Earth making the Earth more warm than normal and affects the temperature leading to global warming. It is interesting to note that ‘Ozone Holes’ are created mainly on the poles which is the reason of melting glaciers, increase in the water level of the sea and of course significant rise in temperature.