2023-10-11 05:59:00
Hunga Tonga, the name of this underwater volcano located in the southwest of the Pacific Ocean, erupted in January 2022. As Antje Innes explains: “The eruption of this volcano injected a lot of water vapor into the stratosphere. […] This water vapor may have led to increased formation of polar stratospheric clouds, where chlorofluorocarbons (CFCs) can react and accelerate ozone depletion. The presence of water vapor can also contribute to the cooling of the Antarctic stratosphere, which favors the formation of these polar stratospheric clouds. (Editor’s note: destroying stratospheric ozone) and gives rise to a more robust polar vortex.”
Unfortunately for researchers, this volcanic episode seems to be the only one in recent history to have produced so much water vapor in the atmosphere. Without a point of comparison, it is difficult for them to draw a conclusion with certainty.
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