Given that the majority of the Earth’s interior is over 1000 degrees Celsius, how does the planet maintain a relatively cool surface temperature, considering it has a thick atmosphere?

Question

Given that the majority of the Earth’s interior is over 1000 degrees Celsius, how does the planet maintain a relatively cool surface temperature, considering it has a thick atmosphere?

In: 58

Answer 1

Space is very cold. The interior of Earth is very hot. Somewhere in between, it’s going to be room temperature. For Earth, that is roughly at the surface.

You can be more precise if you want with a simple model like the heat equation, but that’s probably going beyond ELI5.