👉 The "chemopause" is a term used in astronomy and astrophysics to describe the point at which the Earth's atmosphere begins to cool significantly, causing an abrupt end to solar radiation. This occurs when the Earth's surface temperature drops below 250 K (around -16°C) due to the loss of greenhouse gases such as carbon dioxide and methane from the atmosphere. The "chemopause" is often associated with the transition from a warmer, habitable climate to an inhosp
