Wherever you happen to be listening right now, at some level beneath your feet, the rocks in the earth reach your temperature hot enough to boil water and create steam.

And with steam, you can turn a turbine and create electricity.

If everywhere on earth is just a few kilometers away from

tapping into this source of energy, why don't we use this everywhere? Learn more about

geothermal energy, its uses, and its limits on this episode of Everything Everywhere Daily. Book your ticket to happiness with Sun Express Airlines. The Geothermal energy is pretty simple. Geo means Earth and thermal means heat.

Geothermal is just tapping into the heat deep inside the Earth. Geo means Earth, Earth, and thermal means heat.

Geothermal is just tapping into the heat deep inside the Earth.

Before I get into the details of how we can get usable energy from the Earth's heat,

I should explain why the Earth is so hot below the surface.

There are two sources of heat inside the Earth.

The first comes from the primordial heat from when the Earth was first formed.

When all the loose rocks collided with each other about 4 billion years ago, it created an enormous

amount of heat from friction. As more and more rocks amalgamated to form the planet, all of the

heat became trapped. As rocks aren't a very good conductor of heat, much of that

original heat is still there. Primordial heat contributes to about half the

heat inside the earth. The other source of heat comes from radioactive

decay.

As radioactive elements naturally decay, they release heat, which, like primordial heat, is for the most part trapped.

The natural radioactive elements, which are responsible for this heat are mostly uranium thorium and potassium.

Over time the interior of the earth is gradually cooling down, but it's a very slow process.

The radioactive isotopes eventually get used up and heat is lost

via volcanoes and other fissures in the Earth's crust. That being said we are a

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