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There are on going global efforts to get consensus on HFC phase down. Similar global alliance needs to be formed for removing market barriers for low GWP alternatives, which are energy efficient. Research need to go beyond the material compatibility of the refrigerants and beyond the risk assessment studies and beyond the experiments with flammable refrigerants. It should include energy efficiency of the system, region specific studies that would take into account the high ambient temperature to Asses the energy efficiency.
Without such global alliance for collective and collaborative effort the HFC phase down talk would remain as ‘complacency after success’ and without any actions.