Undersea volcano eruption in Tonga was a “once-in-a-lifetime event” that could warm Earth’s surface, scientists say

When an undersea volcano erupted in Tonga in January, its watery blast was huge and unusual — and scientists are still trying to understand its impacts. The volcano, known as Hunga Tonga-Hunga Ha’apai, shot millions of tons of water vapor high up into the atmosphere, according to a study published Thursday in the journal Science. … Read more