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Antarctic ozone hole beginning to heal

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Michael Vaughn
Jun 30, 2016 19:28
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When the Montreal Protocol phased out the use of chlorofluorocarbons starting in 1989, scientists expected to see improvements in the Antarctic ozone hole that was opening each spring.

They weren't anticipating anything immediate—instead, improvement was expected within 20 to 30 years of the protocol s implementation.

Ozone recovery occurs through distinct stages, including a reduction in the rate of ozone decline and a leveling off of the depletion.

Only once these are done should we expect to see an ozone increase, termed ozone healing.

Previous studies of the Antarctic ozone have provided evidence that the early phases of ozone recovery have been occurring.

A new paper published in Science presents the first signs ozone healing may be occurring as well.

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Michael Vaughn
Jun 30, 2016 19:28
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