New ozone-destroying chemicals found in atmosphere

Mar 10th, 2014 | By | Category: Climate Change

Dozens of mysterious ozone-destroying chemicals may be undermining the recovery of the giant ozone hole over Antarctica, researchers have revealed.

The ozone hole reached its biggest extent for the year on 26 September, 2013. (photo: NOAA)

The ozone hole reached its biggest extent for the year on 26 September, 2013. (photo: NOAA)

The chemicals, which are also extremely potent greenhouse gases, may be leaking from industrial plants or being used illegally, contravening the Montreal protocol which began banning the ozone destroyers in 1987. Scientists said the finding of the chemicals circulating in the atmosphere showed “ozone depletion is not yesterday’s story.”

Until now, a total of 13 CFCs and HCFCs were known to destroy ozone and are controlled by the Montreal protocol, widely regarded as the world’s most successful environmental law. But scientists have now identified and measured four previously unknown compounds and warned of the existence of many more.

For more on this story, visit: New ozone-destroying chemicals found in atmosphere | Environment | The Guardian.

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