3.7 Heat sources on earth

– fires; internal heat dissipation; volcanoes; creation of electrical energy – coal, nuclear, gas; transport fuel burning; even our bodies converting food to heat. Urban “island” heating.


Geologists have used temperature measurements from more than 20,000 boreholes around the world to estimate that some 44 terawatts (44 trillion watts) of heat continually flow from Earth’s interior into space.

Have seen  a photo of a ring of volcanoes spewing heat right around the Antarctic ?continent. Cannot find where I stored it, if i did.

Effects of Subsea Volcanic Heat at ‘Digging in Clay’



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