Ozone layer depletion is a serious issue that affects not only humans but also the entire planet. It is the phenomenon of the ozone layer (made up of O3) in the stratosphere being reduced through chemical reactions. It may not seem like a significant problem, but the ozone layer is critical for the well being of Earth?s organisms. The ozone layer acts as a protective blanket around the Earth against the harmful UV rays coming from the Sun, stopping most from hitting the planet. Without the ozone layer, humans, flora, and fauna would be exposed to all of the intense UV radiation that would damage the DNA of organisms, cause skin cancer rapidly, and stop most plants from photosynthesis.

The main cause for ozone layer depletion is the existence of chlorofluorocarbons, or CFCs (among other similar chemicals like hydrochlorofluorocarbons (HCFCs), and hydrofluorocarbons (HFCs)), in the atmosphere. CFCs are chemicals consisting of carbon, chlorine, and fluorine, and are also called by the name ?Freon? or ?Freon gas.? Because of their non-flammable qualities, they were ubiquitously used in the industry in the 20th century as refrigerants in air conditioners and refrigerators, propellants in aerosol sprays, and solvents for dry cleaning. However, the manufacturing of these common products can lead to CFCs carried into the atmosphere. According to eSchool Today, releasing one CFC molecule to the atmosphere can destroy more than 100,000 molecules of ozone. 

After finding a growing hole of the ozone layer above Antarctica in the 1960s, the world implemented a ban of CFCs moving into the 21st century, leading to the depletion process occurring more slowly. However, reports of illegal CFC production in eastern Asia (from The Guardian) among others have shown that work still needs to be done about ozone layer depletion. So what can we do? A simple solution to this issue is not to use the products that may have involved the production of CFCs or other similar chemicals that destroy the ozone layer. In the summer, try to stay away from using the air conditioning too much, since the usage of air conditioning will also contribute to climate change along with ozone layer depletion. Additionally, raise awareness about the significance of ozone layer depletion, especially considering that September 16th, 2018, is the International Day for the Preservation of the Ozone Layer!