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Earth's Limited Habitability Due to Solar Evolution

The Earth's habitability is threatened as the Sun's evolution will cause the planet to cross the moist greenhouse threshold in approximately 1.1 billion years, leading to irreversible ocean loss and a significant reduction in habitability. This process begins with the CO₂ starvation era, which affects plant life, and progresses to a runaway greenhouse effect, rendering the planet inhospitable. The timeline of Earth's habitability is critical for understanding the limitations on life support systems.

Science, Earth & Space Sciences, Climatology