A new study examines how long Earth will remain habitable as the Sun brightens over billions of years, focusing on the complex interplay between solar radiation and Earth's carbon cycle. The research suggests that life-sustaining conditions might persist longer than previously thought due to atmospheric CO2 regulation through silicate weathering, though the planet will eventually become uninhabitable when CO2 levels drop too low for photosynthesis.
Background
Scientists have long studied the future habitability of Earth as the Sun continues to brighten over its lifetime, with previous models suggesting various timelines for when conditions would become uninhabitable for complex life.
- Source
- Ars Technica
- Published
- Jun 16, 2026 at 12:28 AM
- Score
- 5.0 / 10