And, most immediate to personal comfort, should the average indoor temperature of British houses continue to rise, stay roughly the same at 17.5C (63.5F), or fall?

BBC: How warm is your home?

The growth in the number of air-conditioned homes, which has made indoor TV viewing bearable regardless of the temperature outside, is among them.

FORBES: Magazine Article

In 2001, the Court ruled against the government in a case involving use of a ground-based thermal imager to detect an indoor marijuana growing operation by measuring the temperature of the roof and outside wall of a house.

FORBES: Will "Drones" Outflank the Fourth Amendment?