The Ozone Hole Explained
This simple guide explains the ozone hole using information primarily from mainstream sources which support the thesis that chlorofluorocarbons are the primary cause for the depletion of ozone in the upper atmosphere. What is ozone? Ozone is simply another term for trioxygen or O3. https://en.wikipedia.org/wiki/Ozone#Location_and_production Why do we need ozone? We need Ozone to filter out ultraviolet light from sunlight. Ozone in the ozone layer filters out sunlight wavelengths from about 200 nm UV rays to 315 nm, with ozone peak absorption at about 250 nm. This ozone UV absorption is important to life, since it extends the absorption of UV by ordinary oxygen and nitrogen in air (which absorb all wavelengths < 200 nm) through the lower UV-C (200–280 nm) and the entire UV-B band (280–315 nm). The small unabsorbed part that remains of UV-B after passage through ozone causes sunburn in humans, and direct DNA damage in living tissues in both plants and animals. https://en.wikipedia.org