Or for more realism, how about putting the people in a chilly room and then turn up the thermostat .6 degrees every century?

24 Hour News 8 Blogs » “The Steam Experiment” movie close to wrap

The story begins when former university professor James Pettis (VAL KILMER) boasts to the local paper that he has trapped six people and is holding them hostage in a Turkish bath to prove his hypothesis that humans will devolve into chaos under the pressures of global warming.