We can limit them, sure. Freon is not necessary at this point in time.

That said, the climate change worshippers could use this argument against you with coal.

You can be prepared with an argument about how greenhouse gases improve plant life, and that the Earth (as well as the Sun) goes through cycles of heating and cooling (as does the sun).

Of course at this point you will only find the truth on random science documentaries that talk about how the sun is in a hot period right now, with no connection to how that affects the planets that receive that radiation.