Looking for Geneva Convention Reference

[HorseSoldier]

I don't think there's any requirements under international law to keep prisoners in a similar climate. If I remember right, Afrika Korps and Italian prisoners from North Africa on the Commonwealth side were interned in Canada without any fuss (and probably much preferred by the prisoners to something more matching the environment of North Africa).

[Sanjuro]

There was a POW camp in Orkney which held a lot of Italians; they built this chapel.
http://www.orkneypics.com/webpage/page/page045.html
But when I did an internet search to find it, I found a lot of POW built chapels survive, many of them built by Italians.
I'd be willing to bet none of the Italian POWs were captured in a climate anything like Orkney- maybe they built the chapel to pray fro warmer weather?

[Webstral]

It seems like the consensus is that climate of the EPW camp is immaterial, so long as the EPW have proper housing, food, clothing, and care for the locality. Excellent.

[Legbreaker]

Japanese prisoners captured by Australians were kept in radically different environments to the hot, steamy jungles where they were caught. Instead of the balmy environment available in northern Queensland, they were kepts down south in the cold, cold countryside of southern NSW. There's a rather famous incident "The Cowra Breakout" which was made into a movie of the prisoners fabricating weapons from whatever was on hand and, you guessed it, attempted escape.
Most died either during the attempt, recapture or committed suicide after they failed. I suppose that's what happens when you are armed with baseball bats and broken glass going up against .303 rifles and machineguns.

[HorseSoldier]

If I remember right, there was a similar incident in Canada where Japanese POWs overpowered and killed some guards, escaped, and then just sat there waiting for the responding forces to shoot them. They apparently had no real aim in the escape attempt except to die in an appropriate manner.