harry wrote:

As usual you are a bloody half wit. Heat from mines comes from
geothermal sources, nothing to do with heat stores.

well yes and no. The poles reckon they will have pumped the mines to
cold in twenty years, and then they will be useless for the next 100
until the heat returns slowly from the surrounding earth,..


The Earth is not a
heat store, it would have cooled off billions of years ago.


No, you are compeletely wrong.

There is
a nuclear reaction/process of radioactive decay in the centre of the
Earth that keeps it hot.

No, that only HELPS keep it hot. A LOT of the heat is simply that it
hasn't cooled yet. The article says 20%. That is disputed by other sources.


http://en.wikipedia.org/wiki/Earth#Heat
Janitors don't know much.

Is that what you are?

educate yourself further

http://csmres.jmu.edu/geollab/fichte...athistory.html