The refrigeration industry has supported global efforts to protect the environment by phasing out chlorine-containing refrigerants in accordance with the Montreal Protocol. These actions have significantly reduced chlorine in the atmosphere and are starting to repair the ozone layer.
Today there is increased attention on global warming and the reduction of greenhouse gases. To the extent that refrigeration equipment consumes energy, refrigeration systems design and the corresponding choice of refrigerants also contribute to this global warming. Equipment manufacturers have significantly improved energy efficiency.