Description: Batteries are dirty. Geothermal power can help., Geothermal Made Easier AND Cheaper? | Cool Down CEO Interview, Largest geothermal energy complex in the U.S. is under construction in Brooklyn, Kenya's geothermal energy to lift millions out of poverty
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Geothermal gradient is the rate of increasing temperature with respect to increasing depth in the Earth 's interior. Away from tectonic plate boundaries, it is about 25 °C per km of depth (1 °F per 70 feet of depth) near the surface in most of the world. Strictly speaking, geo -thermal necessarily refers to the Earth but the concept may be applied to other planets. A line tracing the gradient through the planetary body is called a geotherm on Earth and other terrestrial planets. On the Moon it is called
The Earth's internal heat comes from a combination of residual heat from planetary accretion , heat produced through radioactive decay , and possibly heat from other sources. The major heat-producing isotopes in the Earth are potassium-40 , uranium-238 , uranium-235 , and thorium-232 . At the center of the planet, the temperature may be up to 7,000 K and the pressure could reach 360 GPa (3.6 million atm). Because much of the heat is provided by radioactive decay, scientists believe that early in Earth h
Geothermal is related to energy and may refer to: