How Earths atmosphere gets energy?

Answer 1

The earth actually has two primary sources of energy: external the Sun, and internal Geothermal. The Geothermal source is due to radioactive decay deep in the earth. A few of these elements that are heating the inside of the earth can also be mined when they are present near the surface and used by man. One of these (uranium) provides the energy for nuclear power plants to make electricity. All of these radioactive elements were produced in supernova explosions long before our solar system formed, so Geothermal energy also came from stars (but long dead ones, unlike the Sun which is very much a living star).

Answer 2

All the initial energy in the world comes from the sun. We can capture this immediately through solar panels. Secondary energy comes from burning any carbon material. Most of our electricity comes from burning fossil fuels.

Answer 3

The earth's energy being reflected to atmosphere.