The hole in the ozone layer will be completely closed by 2066

The WMO, the World Meteorological Organization, has just announced that the hole in the ozone layer should close completely within about 40 years.

Positive climate news is rare, yet decades from now, the hole in the ozone layer will be a distant memory. The World Meteorological Organization (WMO) has just announced that the measures taken, such as the prohibition of certain chemicals, have markedly improved the situation over the past four years. If the same restrictions remain in place for the next few years, the ozone layer will return to its pre-1980 state, i.e. without a hole, by 2040 for most of the world, by 2045 at above theArcticArctic and by 2066 over Antarctica. Thanks to this total recovery of the ozone layer, the Planet will avoid an additional warming of 0.3 to 0.5°C by 2100, and life on Earth will escape dangerous exposure to the rays ultravioletultraviolet of SoleilSoleil.

Evidence that bears witness to the effectiveness of climate measures

The first actions in favor of the protection of the ozone layer were adopted after the Montreal Protocol, in 1989. “The measures taken for ozone are unprecedented in mattermatter of climate action. The success achieved in phasing out ozone-destroying chemicals shows us what can, and must be done – urgently – to abandon the fuelsfuels fossil fuels, reduce greenhouse gases and thus limit the rise in temperatures”,said WMO Secretary-General Petteri Taalas.

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