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Template:POTD/2012-12-21
Picture of the day archives
:
2012 December
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2012 December 20
2012 December 22
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Picture of the day
An
animated image
showing projections of stratospheric
ozone
concentrations if
chlorofluorocarbons
(CFCs) had not been banned. CFCs and other
halogenated
ozone-depleting substances are mainly responsible for man-made chemical
ozone depletion
. Since the
ozone layer
absorbs
UVB ultraviolet light
, its depletion is expected to increase surface UVB levels, which could lead to damage, including increase in
skin cancer
.
Image:
NASA
/
GSFC
/
Fallschirmjäger
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