Table 3 List of the main findings of the reviewed studies
Reference (> Authors) | Country | Level of study | Period of study | Emission category considered | Study category |
|---|---|---|---|---|---|
[16] | / | Global | / | Â | Healthcare systems and health region |
[20] | United Kingdom | National (NHS England) | 1999–2019 | Scopes 1, 2, and 3 and patient and visitor travel emissions | Healthcare systems and health region |
[17] | United States | National (NHS United States) | 2007 | Direct effects of health care activities and indirect effects that include upstream supply-chain effects | Healthcare systems and health region |
[18] | Australia | National (NHS Australia) | 2014–2015 | Input–output life-cycle assessment | Healthcare systems and health region |
[19] | China | National (NHS China) | 2012 | Input–output life-cycle assessment | Healthcare systems and health region |
[21] | Scotland | Regional (carbon footprint of NHS Scotland) | / | Travel emissions | Healthcare systems and health region |
[22] | Greece | Local (GHG emissions of a Military Hospital in Athens) | January and December 2018 | Electricity, Fossil fuels, Transport activities, Refrigerators, Air-conditioning systems, Waste disposal | Healthcare facilities |
[23] | United Kingdom | Local (carbon footprint of a geriatric clinic) | Before and after the COVID 19 pandemic | Patient travel, staff travel, PPE, water, waste, telecommunications and heating/lighting the clinic facilities | Healthcare facilities |
[24] | United Kingdom | Local (carbon footprint of a specialist palliative care unit) | 2021 | Medical and non-medical which included energy, waste and transport | Healthcare facilities |