Ancient Arctic Climate in Subarctic Canada
A new study reveals that palm trees once grew in subarctic Canada, indicating a warm climate 48 million years ago. Fossils of warm-water species suggest the region was ice-free and had a subtropical climate. The research helps refine climate change models and challenges assumptions about when ice first formed in the Northern Hemisphere.
Key Points
- Palm trees once flourished in subarctic Canada 48 million years ago
- Fossils of warm-water species indicate a subtropical climate
- Research helps understand long-term climate shifts
Pros
- Provides insights into ancient climate conditions
- Helps refine models predicting future climate change
- Challenges previous assumptions about arctic climate history
Cons
- None mentioned