In many parts of the world, things are hotting up. Take Australia, for example. Having recorded its warmest day in history (46 degrees Celsius) as recently as 2009, the Victorian capital of Melbourne notched up a record four straight days of above 40 degree temperatures last month. That same week, the South Australian capital of Adelaide was officially the world’s hottest city for a day.

In this environment, cooling systems are in overdrive and power bills are rising, raising questions about whether air-conditioners designed for more temperate conditions are up to scratch and whether or not designers and engineers are creating systems that will be adequate in an environment of higher temperatures. Anecdotal evidence this…