The way Earth's 'thermostat' works may have changed during Pangea era
Phys.org ·
Life arose on Earth at least 3.5 billion years ago, and our planet has remained habitable ever since—not too hot, not too cold. These life-sustaining conditions are possible in part thanks to a built-in, carbon cycle–based climate "thermostat" that controls the amount of carbon dioxide in the atmosphere.