For the sake of the planet, refrigeration tech needs an update
Refrigeration keeps our food is fresh and our offices and living rooms are temperature-controlled thanks to vapor compression technology developed over a century ago, but it's reached its theoretical limit for potential energy efficiency. A group of scientists and engineers at the U.S. Department of Energy’s Ames Laboratory are inspired by the idea that refrigeration could be radically improved—made cheaper, cleaner, and more energy-efficient—by abandoning vapor compression for something entirely new: a solid-state caloric system.