Summary:
- Scientists have discovered a group of microbes that could significantly impact our understanding of Earth's climate history.
- These microbes, called Archaea, are found in extreme environments like hot springs and volcanic vents, and they appear to be involved in the global carbon cycle.
- The discovery of these Archaea could lead to a rewriting of the climate story, as they may have played a more important role in shaping Earth's atmosphere and temperature over geological timescales than previously thought.