Let's Worry More About Leaks, Less About Metrics

After scientists discovered the hole in the ozone layer, they determined that it was caused by the chlorine in chemical compounds like CFCs, which were widely used in aerosols and refrigerants. With CFCs and HCFCs being phased out, HFC refrigerants were developed to take their place in air conditioning and refrigeration equipment. Critics of GWP offer an alternative method that can be used to assess the potential harmful effects of refrigerant emissions on the environment - the global temperature change potential (GTP), which the IPCC defines as being the change in global mean surface temperature at a chosen point in time in response to an emission pulse relative to that of CO2.