# Study: Ice Sheet Expansion Began 2,000 Years Ago, Then Human Warming Halted It

Research suggests an ice sheet may have begun expanding about 2,000 years ago, but human-caused climate change has since canceled that growth. The finding matters because it indicates recent warming has reversed a long-term natural trend, with implications for sea-level rise and climate modeling.

**Importance:** 3/5

## Sources

### Technology
- [Ars Technica](https://arstechnica.com/science/2026/10/ice-sheet-expansion-may-have-started-2000-years-go-but-we-canceled-that/) — Sat, 24 Oct 2026 11:00:09 +0000