Author:
Desmond Sharon,Smith Jenny,Hogg Jessica,Walton-Hespe Jo,Gardner-Marlin Jo
Abstract
Objective This study aimed to calculate the baseline carbon inventory of Mercy Health, a provider of health and aged care services in Australia, across emission Scopes 1, 2 and 3. The carbon inventory has clarified the baseline environmental impact, identified carbon hotspots and will inform emissions reduction interventions and a decarbonisation trajectory. Methods A hybrid carbon footprinting methodology was devised. Established carbon footprinting standards provided methodological guidance. A consulting firm with health service carbon accounting experience provided expertise, rigour and objectivity to the work. Results In the 2020–21 financial year, the carbon footprint of Mercy Health was 102.96k tCO2-e. Scope 1 emissions accounted for 11.07% (11.40k tCO2-e), followed by Scope 2 with 29.80% (30.68k tCO2-e) and Scope 3 with 59.13% (60.88k tCO2-e). The largest carbon impost group was Building energy (42.01%; 43.25k tCO2-e), followed by Food and catering (9.42%; 9.70k tCO2-e) and Business services (7.74%; 7.97k tCO2-e). Mercy Health’s Health Services, Aged Care and Support Services divisions contributed 49.16, 47.81 and 3.03% (50.61k, 49.23k and 3.12k tCO2-e) of total greenhouse gas emissions respectively. Conclusions Mercy Health’s Health Services division and Aged Care division each comprised around half of total organisation carbon emissions. Building energy dominated emissions, particularly electricity. The study discovered meaningful differences in the composition of carbon emissions in operational divisions of the organisation, indicating tailored interventions will be required to meet carbon abatement targets. The study demonstrates the benefit of conducting carbon footprinting within individual organisations, and the importance of studies within the Australian context.
Reference29 articles.
1. The environmental footprint of health care: a global assessment.;Lancet Planet Health,2020
2. Health Care Without Harm & Arup. Health care’s climate footprint: How the health sector contributes to the global climate crisis and opportunities for action. 2019. Available at [accessed 4 May 2023].
3. The carbon footprint of Australian healthcare.;Lancet Planet Health,2018
4. Health care’s response to climate change: a carbon footprint assessment of the NHS in England.;Lancet Planet Health,2021
5. Commonwealth of Australia Department of Climate Change, Energy, the Environment and Water. Australian National Greenhouse Accounts Factors: For individuals and organisations estimating greenhouse gas emissions. February. 2023. Available at [accessed 5 May 2023].