The UN announces: "The hole in the ozone layer is closing"
The United Nations: «The situation will return to normal at the poles between 2045 and 2066». The bans imposed by governments on harmful substances, such as CFCs, are decisive(Handle)
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By 2040 the ozone hole will have almost completely closed and the layer that defends our planet from damage from the sun's rays will return to normal, by 2045 in the Arctic and by 2066 in Antarctica.
This was announced by the UN, underlining that one of humanity's most feared environmental "wounds" is in the healing phase thanks to the decisive action of many governments which for years now have implemented policies to ban the use of substances harmful to the protective layer that surrounds the Earth.
The first alarm bells were raised in the 1980s and in 1989 an international protocol was signed in Montreal, Canada to ban 99% of chemicals that deplete the ozone layer, such as chlorofluorocarbons (CFCs) which they were used as solvents and refrigerants.
The UN says that the action taken on the ozone layer has also been a weapon against the climate crisis: CFCs are also greenhouse gases and their continued and uncontrolled use would have raised global temperatures by as much as one degree Celsius by half of the century, worsening an already disastrous situation in which the gases that warm the planet are not yet decreasing. Now the trend reversal, as explained by Petteri Taalas, secretary general of the World Meteorological Organization, who presented the progress report, compiled every four years.
“Action on ozone sets a precedent for climate action,” he said. Adding: "Our success in phasing out ozone-depleting chemicals shows us what can and should be done urgently to move away from fossil fuels, reduce greenhouse gases and thereby limit temperature rise."
(Unioneonline/lf)