The dot is a common notation to indicate that all of these species have an .... As
explained above, the primary cause of ozone depletion is the presence of ...
All B.C. Government ... Scientific evidence indicates that stratospheric ozone is
being destroyed by a group of manufactured chemicals, ... In B.C., halons cause
greater damage to the ozone layer than do CFCs from automobile air
Causes and Effects of Ozone Hole: Ozone layer is important because it prevents
too ... All of these gases contain chlorine, which is a major cause behind the ...
Ozone layer and causes of ozone depletion: Ozone layer is a deep layer in
earth's atmosphere called stratosphere that contain ozone which is a naturally ...
The phenomenon which we call the ozone hole was first discovered in the 1980s.
... Almost immediately, theories regarding the cause of such a phenomenon ....
other ozone depleting substances (95 chemicals in all), to the eventual goal of ...
Many people have heard that the ozone hole is caused by chemicals called
CFCs, ... Please credit all material to “NASA Ozone Watch” unless otherwise
Too much UV can cause skin cancer and will also harm all plants and animals.
Life on Earth could not exist without the protective shield of the ozone layer.
Jan 20, 2010 ... Of all of the causes of ozone depletion, the release of CFCs is thought to have
accounted for 80% of all stratospheric ozone depletion.
? In the 1980s, scientists discovered  that the ozone layer was thinning in the ...
Aug 19, 2010 ... How do we know that natural sources are not responsible for ozone ... The
discussion below focuses on CFCs, but is relevant to all ODS.