What is the function of plate tectonics in maintaining Earth's long-term climate stability?

Regulating atmospheric CO2 levels through the carbon-silicate cycle

Plate tectonics is regarded as essential for the long-term climate stability of Earth because it drives the carbon-silicate cycle. This geological feedback mechanism involves the cycling of carbon dioxide between the atmosphere and the planet's interior via tectonic activity, including volcanic outgassing and the weathering of silicate rocks. This process acts as a global thermostat, preventing atmospheric CO2 levels from rising uncontrollably (like a runaway greenhouse) or falling too low (leading to permanent glaciation), thereby keeping surface temperatures conducive to liquid water over geological timescales.