Since the 1930s, we’ve used CFCs to cool things down. For years, they seemed like a good solution until they have been phased out under the Montreal Protocol due to their contribution to the ozone depletion. They have been replaced to a large extend by HFCs. But now we know they are no good for the environment. They contribute a lot to global warming. There is only one good solution: change to natural refrigerants.
Natural refrigerants are your only future-proof choice because: