In the absence of the sun, the surface temperature of the Earth would only be slightly above absolute zero.
No no no! The sun has absolutely nothing to do with the temperatures on Earth. That’s crazy talk. It’s just a big light in the sky, nothing more. To say that it affects everything from communications to the variability in seasons and temperature on the Earth is akin to saying that the Earth is round. Pure lunacy!
/sarcOff
It is amazing,...but some seem to believe otherwise!