Tonga volcano unleashed fastest ever undersea flows: study

An unprecedentedly violent volcanic eruption that triggered a tsunami off the Pacific island nation of Tonga in 2022 unleashed the fastest underwater currents ever recorded, according to a study published on Thursday.

Disparities found in who dwells behind US levees

In the United States, tens of millions of people live behind levees, but historically disadvantaged groups are more likely to live behind subpar levees and have fewer resources to maintain critical levee infrastructure, ...

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