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- date unknown
The sudden increase of ultraviolet rays made the researchers believe in the existence of ozone holes.
- date unknown
linked to 151192
landano - Jul 31st 2010, 21:44
linked to 446256
landano - Jul 31st 2010, 21:47
linked to 446262
duran - Nov 3rd 2011, 10:29
linked to 1214754

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Sentence #263364

eng
The sudden increase of ultraviolet rays made the researchers believe in the existence of ozone holes.

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