Till now I have heard $\ce{CO2}$ is the main reason of global warming. I have studied the remedies to control $\ce{CO2}$ many times through books, awarness programs, etc.
But today I learned about Chlorofluorocarbon ($\ce{CFC}$). It have 38 million times more "Global Warming Potential" than $\ce{CO2}$ according to UN.
In my book they have mention the sources of $\ce{CFC}$ like aerosols, refrigerators, air-conditioners, foams in fire extinguisher, etc.
But it does not tell what effort we should make or scientist are doing in order to reduce harmful of $\ce{CFC}$.
I have heard that $\ce{CFC}$ is replaced by 1,1,2,2-Tetrachloroethane, nothing else.
So, I want to know what else we are trying to reduce harmful effect of $\ce{CFC}$?