The Earth’s ozone layer is on track to recover within four decades, a UN-backed panel of experts said on Monday. But the group also warned of the unintended impacts on the ozone layer of new technologies such as geoengineering. In a report published every four years on the progress of the Montreal Protocol, the panel confirmed the phase-out of nearly 99 per cent of banned ozone-depleting substances. The Montreal Protocol has already benefitted efforts to mitigate climate change, helping avoid global warming by an estimated 0.5°C. The report reaffirms the positive impact that the treaty has had on the climate. “Ozone action sets a precedent for climate action. Our success in phasing out ozone-eating chemicals shows us what can and must be done – as a matter of urgency – to transition away from fossil fuels, reduce greenhouse gases and so limit temperature increase,” said World Meteorological Organization Secretary-General Petteri Taalas.
By UN News. January 9, 2023.
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