'As climate change continues to reshape the Arctic, it's critical that we also understand changes in the submerged permafrost offshore.'
"We know that big changes are happening across the Arctic landscape," said the lead researcher,"but this is the first time we've been able to deploy technology to see that changes are happening offshore too."While thawing permafrost on land tied to human-driven global temperature rise has generated worldwide alarm in recent years, a new study out this week is garnering attention for researchers' discoveries underwater.
An international team of researchers led by Charlie Paull, a geologist at the Monterey Bay Aquarium Research Institute in California, andProceedings of the National Academy of SciencesPermafrost is a mix of ice, rocks, sand, and soil that remains frozen year-round. The thawing of terrestrial permafrost in placeshas fueled concerns about not only damage to at-risk infrastructure but also the release of planet-heating gases as well as ancient bacteria and viruses.
The researchers found craters—including one that was 92 feet deep, 738 feet long, and 312 feet wide, or bigger than a city block of six-story buildings—as well as ice-cored hills resembling""We know that big changes are happening across the Arctic landscape, but this is the first time we've been able to deploy technology to see that changes are happening offshore too," PaullUnlike terrestrial permafrost thawing, the limited data available signals that human-caused global...
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