# Underground hydrogen may become the next energy frontier

Researchers and startups are exploring natural hydrogen reservoirs buried underground as a potential clean energy source. This could offer a low-cost, continuous supply of zero-carbon fuel if extraction proves viable. The idea challenges the assumption that hydrogen must be manufactured, which may reshape energy strategy.

**Importance:** 3/5

## Sources

### Technology
- [MIT Tech Review](https://www.technologyreview.com/2026/08/20/1142512/geologic-hydrogen-hunt/) — Thu, 20 Aug 2026 10:00:00 +0000