The ozone layer is responsible for absorbing harmful ultraviolet rays, and preventing them from entering the Earth's atmosphere.However, various factors have led to the depletion and damage of this protective layer.
Various studies have been undertaken to find out possible solutions.
Let us take a look at some of the causes and effects of ozone layer depletion.), found in the Earth's atmosphere.
At the same time, increase in the level of ozone in the lower atmosphere can enhance the ability of sunlight to synthesize vitamin D, which can be regarded as an important beneficial effect of ozone layer depletion.
Growing concern for ozone depletion led to the adoption of the Montreal Protocol in 1987, in order to reduce and control industrial emission of chlorofluorocarbons (CFCs).
Let us take a look at how ozone depletion affects different life forms.
Ozone depletion is listed as one of the causes for the declining numbers of amphibian species.
It is formed when oxygen molecules absorb ultraviolet photons, and undergo a chemical reaction known as photo dissociation or photolysis.
Ultraviolet radiations (UVR), are high energy electromagnetic waves emitted from the Sun.
These are often found in vehicle emissions, byproducts of industrial processes, refrigerants, and aerosols.
ODS are relatively stable in the lower atmosphere of the Earth, but in the stratosphere, they are exposed to ultraviolet radiation and thus, they break down to release a free chlorine atom.), and forms chlorine monoxide (Cl O), and a molecule of oxygen.