Ozone depletion describes two distinct but related phenomena observed since
the late 1970s: ... The dot is a common notation to indicate that all of these
species have an unpaired electron and are t...
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 ...
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.
Of all of the causes of ozone depletion, the release of CFCs is thought to have
accounted for 80% of all stratospheric ozone depletion. With great forethought,
What Causes Ozone Depletion? The ozone in the ozone layer is being broken
down by chlorine atoms from chlorofluorocarbon (CFC) molecules and bromine ...
Many people have heard that the ozone hole is caused by chemicals called
CFCs, ... Please credit all material to “NASA Ozone Watch” unless otherwise
Ozone depletion occurs when the natural balance between the production and ...
such as CFCs are now accepted as the main cause of this depletion. It was first ...
Cover of Scientific Assessment of Ozone Depletion: 1998, Executive Summary ...
a number of ways, but ozone depletion is not a major cause of climate change.
are not the cause of observed ozone depletion. Lifetimes and emissions. ... all
regulated gases are expected to decrease in the coming decades (see Q16).