Geothermal electricity

It is sometimes possible to generate electricity using the high temperatures found deep in the earth.

Types

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Geography

Major limitation

In most parts of the world, you have to drill very deep to reach high enough temperatures. ^{[QUANTIFICATION needed]} This usually makes geothermal electricity not viable. The exception is certain "hotspots" around the world. ^{[Map needed]}

Earthquakes

Unknown ^{[RESEARCH needed]}

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Methane emissions

Problem in some cases

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