And now for the good news - Ozone Layer heals itself

2:21 AM Tue 21 Dec 2010 GMT

'Ozone and atmosphere - protecting Earth' . ?

Earth?s upper ozone layer has stopped thinning and could be restored by mid-century, according to the Scientific Assessment of Ozone Depletion 2010 report from the UN, released last month. The ozone layer absorbs 93-99% of the sun?s high frequency ultraviolet light, which would otherwise harm life on Earth. The report attributed much of the repair to the 1987 international treaty that phased out chlorofluorocarbons (CFCs) used in refrigerators, aerosol sprays and some packing foams. 'The Montreal Protocol signed in 1987 to control ozone depleting substances is working, it has protected us from further ozone depletion over the past decades,' said ...

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by Jeni Bone

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And now for the good news - Ozone Layer heals itself

The Bar Crossing: Wait for Slack Water

Night Watch: Stay Useful After Dark

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