Originally Posted by
ChrL
Is it true that the front of the plane is warmer because it is slightly higher up and the heat from the rear cabin rises?
It could simply because there is more hot air circulating in the front.
On a scientific note, the more people in a given space, the warmer the space, due to the heat produced by the people. So, a crowded space would be warmer than a not so crowded one of the same size.
Then, there is this
http://thisbigcity.net/ideas-for-cit...t-from-crowds/