Climate change may provoke new ozone holes over populated areas in two different ways – increasing risk of skin cancers

In a couple of weeks’ time humanity can celebrate the 25-year anniversary of the Montreal Protocol, our greatest environmental success story. In the margins of this good news there are however also a few new ozone concerns. Climate change may … Continue reading

2011 Antarctic ozone hole reached 16.17 million square kilometers

In April the WMO announced the Arctic ozone hole had reached record proportions – perhaps even doubling the previous depletion record of 2005, a Nature publication recently added. On the southern hemisphere the story seems much the same. New data … Continue reading

Today’s paradox: current Arctic ozone depletion sign of global warming

The WMO today reports rapid and record-breaking thinning of the ozone layer over the Arctic region over the course of this winter and early spring – with now 40 percent of it gone. Unusually low temperatures in the stratosphere, even … Continue reading

After Copenhagen: Cancún, Kyoto… or Montreal?

Chlorofluorocarbons are up to 11,000 times as potent as greenhouse gases as CO2. The Montreal Protocol locked away some 4 years of regular CO2 emissions. And if we try really hard – and look for every old fridge on the … Continue reading