>The EPA and the Department of Transportation are looking to reduce carbon emissions by using different chemicals in the refrigerants of cars. Currently the chemicals CFC-12 and R-134a are used which contribute heavily to global warming but a new chemical 1234yf will be phased in over the next few years. 1234yf is a near “drop-in” replacement for the current chemicals which means refrigerant systems in cars will not have to be altered – http://aftermarketbusiness.
