Day 259 – The ozone layer is a thin part of the Earth’s atmosphere that absorbs almost all of the sun’s harmful ultraviolet light.
“Ozone is only a trace gas in the atmosphere—only about 3 molecules for every 10 million molecules of air. But it does a very important job. Like a sponge, the ozone layer absorbs bits of radiation hitting Earth from the sun. Even though we need some of the sun’s radiation to live, too much of it can damage living things. The ozone layer acts as a shield for life on Earth.” – National Geographic
Starting in the early 1970’s, however, scientists found evidence that human activities were disrupting the ozone balance. Human production of chlorine-containing chemicals such as chlorofluorocarbons (CFCs) has added an additional factor that destroys ozone. This depletion of the ozone layer, in turn, was affecting life on Earth — the destruction of plants and ecosystems, increase in skin cancer, etc. The scientists’ discovery highlighted the importance of the ozone layer and the dire need to preserve it.
“The scientific confirmation of the depletion of the ozone layer prompted the international community to establish a mechanism for cooperation to take action to protect the ozone layer. This was formalized in the Vienna Convention for the Protection of the Ozone Layer, which was adopted and signed by 28 countries, on 22 March 1985. In September 1987, this led to the drafting of The Montreal Protocol on Substances that Deplete the Ozone Layer.” – United Nations
On 16th September 2009, the Vienna Convention and the Montreal Protocol became the first treaties in the history of the United Nations to achieve universal ratification. September 16 has since then been dedicated each year to the appreciation and preservation of this protective layer and the success of the Vienna Convention.
On this International Day of the Preservation of the Ozone Layer, make sure you are doing your part to protect the ozone.
- Avoid the consumption of gases dangerous to the ozone layer, due to their content or manufacturing process. Some of the most dangerous gases are CFCs (chlorofluorocarbons), halogenated hydrocarbon, methyl bromide and nitrous oxide.
- Minimize the use of cars. The best transport option is urban, bicycle, or walking. If you use a car to a destination, try to carpool with others to decrease the use of cars in order to pollute less and save.
- Do not use cleaning products that are harmful to the environment and to us. Many cleaning products contain solvents and substances corrosive, but you can replace these dangerous substances with non-toxic products such as vinegar or bicarbonate.
- Buy local products. In this way, you not only get fresh products but you avoid consuming food that has traveled long distances. As the more distance traveled, the more nitrous oxide is produced due to the medium used to transport that product.
- Maintain air conditioners, as their malfunctions cause CFC to escape into the atmosphere.
Tomorrow, Grand Rapids is doing something right when it comes to recycling.