There is good news for those who love planet earth. The seasonal hole of Antarctica was recorded to be the smallest compared to past 2 decades. The research was conducted by NASA and National Oceanic & Atmospheric Administration (NOAA). This could well mean that the Ozone layer has started recovering from the destruction through decades.
The ozone layer forms a protective belt over 10 to 18 miles above Earth. The ozone layer is a mixture of nitrogen, oxygen and ozone. This layer reflects the sun’s harmful radiations over the earth. In 1960’s and 70’s, there was widespread release of chlorofluorocarbons (CFCs). CFCs were chemicals primarily used in aerosols which led to the breakdown of layer partially.
The ozone layer above Antarctica has seen further depletion since 1980’s because of region’s varying temperature during summers and winters which createdmore gases that are ozone-depleting which resulted in destruction of 65 % of ozone layer.
It was mostly due to high temperatures that there was reduction in depletion of ozone layer. Scientists believe that the levels of chemicals have reduced so much that we see shrinkage of ozone each year. If this continues for a few years down the line, scientists would be confident that things are improving.
