HP facilities use ozone-depleting substances (ODSs) in cooling and air-conditioning systems. Although these systems are sealed, leaks during operation and maintenance can result in emissions. We continue to replace chlorofluorocarbons (CFCs) in our existing systems with hydrofluorocarbons (HFCs). HFCs are greenhouse gases, but do not deplete the ozone layer. We are also replacing HFC-based cooling systems with HFC-free equivalents when they reach the end of their operational lives. These HFC-free equivalents are not ozone-depleting and have no or very low global warming potential. HP completely eliminated the use of Class 1 ODSs in all manufacturing operations in 1993.

For 2015 and 2016, we calculated ozone-depleting substances emissions by tracking sites that reported refrigerant replacement due to leakage, and applied an intensity factor (based on those actual quantities) for nonreporting sites. For 2017, HP transitioned to a system that tracks all refrigerant invoices company-wide, directly accounting for facilities’ refrigerant leakage and use and eliminating the need for extrapolation.

For a comprehensive overview of our reported ozone depletion potential of estimated emissions, see www.hp.com/go/sustainability_dataandgoals.