Scientists have made new, environmentally friendly refrigerants for air conditioners and fridges. These new coolants have low greenhouse gas (GWP) levels and are being tested. The aim is to see if the replacements can work as well as the current ones like R410A and R404A. Researchers have found that with less GWP, these new refrigerants can still do a good job in chilling and cooling. They are also looking into making them non-flammable for added safety in certain situations. So, the goal is to make ACs and fridges work better without hurting the environment!