When Hunga Tonga–Hunga Haʻapai, an underwater volcano near Tonga in the South Pacific Ocean, erupted in 2022, scientists ...

Key takeawaysA new UCLA-led study shows that the 2022 eruption of underwater volcano Hunga Tonga–Hunga Haʻapai did not warm the planet as was expected ...

When Hunga Tonga–Hunga Haʻapai ... Sulfate aerosols lead to cooling in the atmosphere. Past volcanic eruptions, such as that of nearby Pinatubo in 1991, have had this kind of cooling effect on the ...

A new UCLA-led study shows that the 2022 eruption of underwater volcano Hunga Tonga–Hunga Haʻapai did not warm the planet as was expected but actually reduced temperatures over the Southern ...

A 2022 satellite photo shows smoke rising from a caldera on Tofua, highlighting the "looming threat" of the volcanic island.

This was the date when the Hunga volcano erupted. “A very unusual eruption,” explains environmental physicist Christian von Savigny. Together with colleagues from the Universities of Bremen ...