to understand its importance and work to control the depletion global warming essay rubric of this layer. The word "CFC" has become a generic term referring to any substance that is deleterious to the ozone layer. September 16 is declared as the International Day for preservation of ozone by the Montreal Protocol (1987). Since then, it has undergone seven revisions, in 1990 (London 1991 (Nairobi 1992 (Copenhagen 1993 (Bangkok 1995 (Vienna 1997 (Montreal and 1999 (Beijing). This leads to their breakdown and releasing of free chlorine atoms which reacts with the ozone gas, thus leading to the depletion of the ozone layer.
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Ozone in the lower equality diversity and rights essay atmosphere contributes to global warming and climate change. It can also lead to photo allergy that result in outbreak of rashes in fair skinned people. This was followed by the Kyoto Protocol of 1997. Low temperatures, increase in the level of chlorine and bromine gases in the upper stratosphere are some of the reasons that leads to ozone layer depletion. Increased exposure to UV rays can lead to weakening of the response of immune system and even impairment of the immune system in extreme cases. Aging of skin: exposure to UV rays can lead to acceleration of the aging process of your skin. Activities Take a ten question quiz about this page. The ozone layer protects humans, animals, and plants from harmful ultraviolet rays. Air conditioning - Old air conditioners, made before 1994, typically used a CFC called Freon. Buying and using recycled products, saving of energy, using of public transport can do a lot in combating ozone layer depletion. The treaty was opened for signature on September 16, 1987, and entered into force on January 1, 1989, followed by a first meeting in Helsinki, May 1989.