Phononic Develops 'Cooling Chip' Technology for an Eco-Friendly Refrigerator, Air Conditioner; No More Freon?

A startup company called Phononic has developed "cooling chips," which is an answer to a problem which most refrigerators, air conditioners, and other tech has. The problem these cooling appliances have is that they produce harmful chemicals that can pollute the Earth. What Phononic did was to change its way to produce heat and cold elements, in a climate-friendly way.