# Three key facts about permafrost and why it matters

MIT Technology Review explains three things readers should know about permafrost, the frozen ground found in Arctic and sub-Arctic regions. The explainer matters because thawing permafrost can release stored carbon and methane and destabilize infrastructure as the climate warms. It is informative rather than a report of a new event.

**Importance:** 2/5

## Sources

### Technology
- [MIT Tech Review](https://www.technologyreview.com/2026/10/22/1147591/permafrost-primer/) — Thu, 22 Oct 2026 10:00:00 +0000