This Dutch Startup Converts Heat Into Cold Via A Stirling Engine, And Could

By 2050, almost six billion air conditioners could eat 37% of global electricity, according to the International Energy Agency. That's because as India and China get richer -- and the planet gets hotter -- people around the globe are buying A/C units at levels approaching the United States.

This Dutch Startup Converts Heat Into Cold Via A Stirling Engine, And Could