The words “ozone hole” dominate my earliest memories of climate change. I was in primary school when scientists announced they had discovered a hole in the ozone layer over
Ozone has faded a little from the news but it is a success story. The ozone hole reached its largest size, according to, in 1994. Nasa now expects the ozone over Antarctica to return to the level that it was before 1980. This change is predicted to occur by 2070. Unfortunately, an intact ozone layer may exacerbate the effects of global warming by sealing in heat produced through greenhouse gas emissions, but that is a story for another column.
The announcement of the ozone hole captured imaginations and resulted in effective action in ways that scientists and activists interested in controlling greenhouse gas emissions can only envy. But why should this be the case?In fact my memory is not very good, and the timeline I presented above is not fully accurate. The gaps in my memory point to one of the reasons why CFC regulation was successful.
wrote in Science, Technology & Human Values, the scientific consensus around CFCs was slow to form and less complete than the consensus around greenhouse gas emissions.
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Source: IrishTimes - 🏆 3. / 98 Read more »
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Source: rtenews - 🏆 1. / 99 Read more »
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