MadSci Network: Environment/Ecology

Re: What are some of the efforts being put forth to save the ozone layer?

Date: Tue Apr 21 21:42:52 1998
Posted By: Henry Boyter, Senior Scientist
Area of science: Environment/Ecology
ID: 892486976.En

The efforts to save the ozone layer have focused on the phasing out of a group 
of chemicals commonly called chlorofluorocarbons that have been shown to remove 
ozone from the upper layers of the atmosphere.

These chemicals are made up of carbon and chlorine or fluorine or both.  The 
chemicals in this group that interact with ozone have been placed on lists by 
USEPA and are being phased out.  These chemicals have been used in three main 
areas: refrigeration, cleaning, and spray cans.

Refrigeration also includes air conditioning.  The main uses are in homes, 
buildings, and cars.  All new cars no longer contain the ozone harming 
chemicals.  New air conditioning units can not use these chemicals.

Cleaning includes dry cleaning, spot cleaning, and parts (grease) cleaning.  
Again, these chemicals are being phased out.

There are new chemicals that take the place of the ozone harmful chemicals.  The 
main replacement for these chemicals are also compounds that contain carbon, 
chlorine, and/or fluorine.  These compounds have been shown to not be harmful to 
the ozone layer.

This last point is important.  Just because a chemical contains carbon and 
chlorine and/or fluorine does not mean it harms the ozone layer.  Each chemical 
must be tested individually.

If you go to the following website and look under ozone depletion, you can get a 
bunch of information.

Current Queue | Current Queue for Environment/Ecology | Environment/Ecology archives

Try the links in the MadSci Library for more information on Environment/Ecology.

MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci

MadSci Network,
© 1995-1998. All rights reserved.