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Tonga Volcano
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Tonga volcano blast was unusual, could even warm the Earth

Scientists are still trying to understand the effects of the Tongan volcano eruption earlier this year

By MADDIE BURAKOFF
Published - Sep 22, 2022, 02:06 PM ET
Last Updated - Jun 24, 2023, 07:46 AM EDT

NEW YORK (AP) — 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.

The researchers estimate the eruption raised the amount of water in the stratosphere — the second layer of the atmosphere, above the range where humans live and breathe — by around 5%.

Now, scientists are trying to figure out how all that water could affect the atmosphere, and whether it might warm Earth’s surface over the next few years.

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