Climalife: Is energy efficiency more important than low GWP?

We are all aware of the F-Gas legislation and the drive to low GWP refrigerants but this is only a small part of the overall solution to reduce climate changing emissions. Choosing a low GWP refrigerant does not guarantee a better energy efficiency and in some cases, it may even lead to an increase in the lifetime total emissions from the system if a lower efficiency option is selected. As well as refrigerant choice, there are other actions that can be taken to maintain or improve energy efficiency, reduce total emissions and in most cases they will even pay for themselves over the lifetime of the equipment.