Nick Webb investigates the science and research behind the encouraging news that part of our ozone layer is starting to heal, slowly.
Photo by Allan Scott McMillan | Location: Calgary, Canada
Research published last month from scientists at the University of Colorado Boulder is showing that the affects on the Ozone layer above Antarctica are starting to reverse and even heal.
At about an altitude of about 10 km (6.2 miles) it contains a high concentration of ozone, of which absorbs most of the ultraviolet radiation reaching the earth from the sun.
This is great news for Planet Earth, since the purpose of the ozone is to protect living organisms from the excessive UV radiation, increased exposure can interfere with the DNA and cell division processes in animals and humans leading to mutations, skin cancer, cataract in eyes, weakness in human immune response.
A depleted ozone layer could have a serious impact on plants, ecosystems, materials and biochemicals cycles. It's importance is critical to the balance of our world.