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montreal protocol

Page history last edited by rheannamcknight@carolina.rr.com 10 years, 9 months ago

Montreal Protocol


It was enacted on January 1st 1989.


This law was enacted to stop the depletion of the ozone. Scientists Rowland and Molina studied the effects of CFCs on the atmosphere in 1973. They discovered that these molecules would be held up in the atmosphere and eventually be broken down into chlorine atoms. These atoms were causing the ozone to be eaten away. They realized without the ozone UV-B rays from the sun would penetrate to earth more readily. This causes skin cancer and other problems such as global warming. They put this act into affect in order to stop the loss of the ozone in hopes it would eventually repair itself.


CFCs were used in bug sprays, pesticides, and other comminly used commercial sprays. Other alternatives would have to be found to replace the CFCs. In all there was really not too much controversy over this law. Many people supported the fact that we needed to save our earth.


This bands any use of gases that will cause extreme harm to our ozone. It is an internationally recognized law. They hope that by 2050 our ozone will be completely repaired.


This law has stopped the emmisions of CFCs. This is allowing our ozone to repair and the harmful effects of its depletion are going away. The Montreal Protocol is one of the most successfully know international laws enacted to date. A specific result ot the decrease of CFCs (caused by the Montreal Protocol) is the increase of HCFC fumes. This is due to the use of HCFC instead of CFCs. This is the side effect. They are not thought of as dangerous as CFCs but still should not be used. Other alternatives are being looked at.

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