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Expert Reactions

Another ozone-depleting substance on the rise – Expert Reaction

Sarah-Jane O'Connor posted in on June 28th, 2017.

Now that CFCs and HFCs have been phased out, some smaller ozone-depleting substances are on the red list, with dichloromethane (DCM) identified as an increasing threat by British researchers. DCM is a common industrial solvent that was not regulated under the Montreal Protocol because it has a shorter life-span than other substances, but it still […]

Ozone hole on the mend – Expert reaction

John Kerr posted in on July 1st, 2016.

After persisting for decades, the hole in the ozone layer over Antarctica has begun to ‘heal’, exhibiting an ozone increase. New research from US and UK researchers, published in Science, reports that international efforts to control ozone-depleting chemicals are paying off. Regular and consistent increases in ozone have been detected using several different methods, giving […]

Supersized ozone hole avoided

Peter Griffin posted in on May 29th, 2015.

The Montreal Protocol has prevented a supersized Antarctic ozone hole and a ‘full blown’ Arctic ozone hole, a new study has revealed. Scientists have modelled what the ozone layer would have looked like if ozone-damaging chemicals, known as chloroflurocarbons (CFCs), had not been banned by the 1989 Montreal Protocol. The research, published in Nature Communications this week, has predicted that […]

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