wrote in message
...
... the amount of cooling is miniscule in any case.

Would you have any evidence for this article of faith? :-)

No, just that I tried it (anecdotal evidence is not really evidence, of
course).

Southwest PA ... a little town ...
http://www.city-data.com/city/Roscoe-Pennsylvania.html

Lived there for 5 years and really sweltered in August ... a low altitude
river town with no breeze ... surrounding hills on both sides. The cool
basement air was enticing ... but it just didn't work.

Moved to the top of a hill ... highly recommended! Also, AC is highly
recommended. BTW, the radon gas thing originated in SW PA.