NASA Explorers head back in time…by going underground. In the Arctic, a frozen layer of soil – permafrost – trapped dead plants and animals for thousands of years. As the climate warms, that soil is beginning to thaw, releasing carbon dioxide and methane.
![](https://plus.nasa.gov/wp-content/uploads/2023/08/CRYO_EP7_Thumbnail.png?w=1024)
![NASA Explorers Title](https://plus.nasa.gov/wp-content/uploads/2023/03/NASA-Explorers_Title-Treatment-e1693504078162.png?w=600)
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Publish Date | |
Run Time | 00:06:04 |
Topic | Earth & Climate |
Episode | Episode 7 |
Video Quality | HD |
Rating | TV-G |
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