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Ozone destroying substances on the rise - but Montreal Protocol on track

Posted on 7 November 2014

An international team of scientists, including a researcher from the University of York, has reported a recent increase in atmospheric hydrogen chloride (HCI), an ozone destroying substance.

The findings, reported today in the journal Nature, are based on measurements by a network with stations in Spitsbergen, Greenland, Sweden, Switzerland, Japan, Tenerife, Australia and New Zealand. These are backed up by satellite observations and model simulations. The increase in HCl concentrations was only observed in the Northern Hemisphere, while in the Southern Hemisphere HCl continues to decrease.

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