In Alaska, what was once a permanently frozen layer of earth is now warming.
Researchers are studying this former permafrost to better understand how these melting layers can contribute to our warming climate, Bloomberg reported.
Permafrost refers to any area of ground that remains frozen year-round, not thawing in the summer. It is typically found in the Arctic or in high-altitude, mountainous regions.
Permafrost also effectively stores carbon. According to the National Oceanic and Atmospheric Administration's 2019 Arctic Report Card, it held about twice as much as what was in the atmosphe