EXPLAINER: Tonga's volcanic eruption may harm environment for years, scientists say

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Tonga's volcanic eruption may harm environment for years, scientists say

PublishedA satellite image shows the main port facilities after the main eruption of the Hunga Tonga-Hunga Ha'apai volcano, in Nuku'alofa, Tonga, January 18, 2022. Satellite Image ©2022 Maxar Technologies/Handout via REUTERS

Acid rain causes widespread crop damage, and could ruin Tongan staples like taro, corn, bananas and garden vegetables. “Depending on how long the eruptions last, food security could be compromised,” Cronin said. While scientists have yet to investigate on the ground, “the few pictures that are available seem to show a blanket ... of ash” on land, said Marco Brenna, a geologist at the University of Otago in New Zealand.

Falling ash can also smother coral reefs, which in Tonga are the mainstay of a tourism industry that brought in up to $5 million per year before the coronavirus pandemic.

 

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