The Enigma of an Uncertain Future: How will Earth’s History REALLY end ? | Earth Documentary

🌍 Astrophysicists were the first to address the question of the long-term viability of the biosphere. Earlier studies into the possibility of Earth’s future habitability focused mainly on the interaction between solar heating during its transformation into a red giant, the carbonate-silicate geochemical cycle and water loss. New studies have enabled scientists to predict Earth’s future habitability based on detailed models. These models take into account the Sun’s influence on geochemical cycles such as those for carbon, oxygen, phosphorus and sulfur. In addition, the researchers have included the methane cycle, which encompasses the metabolism of living organisms, as well as the redox exchange between crust and mantle. These elements make it possible to track the processes that control oxygen levels in the atmosphere on a geological scale. This makes it possible to predict the planet’s evolution billions of years into the future. The scientists adopted a stochastic approach, ra