What is the source of radiation for both the earth's atmosphere?

Solar energy (that arrives as sunlight) from the sun is the source of radiation for both the earth's atmosphere and the greenhouse. The solar energy used by the plants for photosynthesis and used by humans as a source of energy is excessively harmful if there is a prolonged exposure.

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Answerjoe ran 130 yards;