Co2 is the problem, if co2 is used for a refrigerant by cryogenetically removing it from the atmosphere then when it leaks out it goes back to where it started from, causing no co2 increse. But, someone is going to figure out how to remove it cheaply througe electrolisis or chemically from coal or baking soda, thus increasing the level of atmosphere CO2.
leave the HFC's alone, eliminate co2 in sodas, there is alot of co2 released every day from soda.
If Co2 is causing global warming, someone is going to produce it cheaply from coal or baking soda thus increasing the earth's CO2.
(Propane?) thats a horror story, supermarkets have rack systems, big leaks happen, Refrigeration men are going to be burnt to death fixing leaks, supermarkets are going to be burning down everywhere. STOP CO2 being released around the world by eliminating carbonated sodas.