Whether it’s your home AC unit, your car’s AC or your refrigerator – the principle is the same. Refrigeration is a closed loop and relies on a cycle of condensation and evaporation, with a refrigerant being compressed until it turns into a liquid and then evaporating to provide cooling. The refrigerant itself has changed over the years, from a compound that depleted greenhouse gases to a more environmentally-friendly product. Still, refrigerant leaks occur, and they are a real problem. Read on to learn more about this problem, and how to fix it.