Why is the interior of the Earth hot? The answer is summarized as: "we don't know," which is odd because most people believe that mainstream science (SciPop) knows exactly how the Earth works.
Why is the Interior of the Earth Hot?
Gehenna
Jesus tells us that the punishment for sin is burning in hell, a fire like in Hinnom. However, hell hasn't been replaced by burning trash in Hinnom. Hell is expanding, it's the cause of global warming.
March 29th
We (that's me and the Holy spirit) made an extensive survey of the ways in which the interior of the Earth is described in Old Testament Hebrew, but how's it described in New Testament Greek?