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THE OZONE HOLE
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THE OZONE HOLE
A fraction of the radiant energy producted sun ultraviolet (UV)
- is so energetic that it can damage biological molecules.
1985
- British atmospheric scientists
- published the startling news that springtime levels of stratospheric ozone
- Artarcticahad declined by more than 40% since
- 1977.
- Artarcticahad declined by more than 40% since
- published the startling news that springtime levels of stratospheric ozone
- British atmospheric scientists
the ozone hole is caused primarily
- by human production
- release of chlorofluorocarbons
- (CFCs)
1987
- montreal protocol
- subsequent amendments set limits
- established phase-out
- periods for several ozone-depleting substance,.
- established phase-out
- montreal protocol
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- Mind Map on THE OZONE HOLE, created by evpericoc on 21/10/2015.
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- evpericoc
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