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Data year: 2023· Sources: CDP, IEA, EPA
4.4%
of global emissions
2.5
Gt CO2e / year
30
tCO2e / $M revenue
60%
Scope 3 share
Average emissions intensity for healthcare companies (2023 data)
| Company Size | tCO2e / employee | tCO2e / $M revenue |
|---|---|---|
| Small clinic / practice | 4 | 35 |
| Mid-size hospital | 8 | 30 |
| Hospital system / pharma company | 12 | 22 |
Small clinic / practice
4
tCO2e / employee
35
tCO2e / $M rev
Mid-size hospital
8
tCO2e / employee
30
tCO2e / $M rev
Hospital system / pharma company
12
tCO2e / employee
22
tCO2e / $M rev
Key decarbonization actions for the healthcare sector
Energy efficiency retrofits for 24/7 hospital facilities
15-25% reduction in building energy
Switch to low-GWP anesthetic gases
50-90% reduction in anesthetic emissions
Sustainable procurement policies for pharma supply chain
20-30% reduction in Scope 3
Renewable energy for hospital electricity
50-100% reduction in Scope 2
Telemedicine to reduce patient travel
5-10% reduction in transport emissions
Healthcare has been slow to address its carbon footprint, partly because the sector's primary mandate is patient care and emissions reduction is seen as secondary.
The global healthcare sector produces approximately 4.4% of global net GHG emissions (about 2.5 Gt CO2e). If healthcare were a country, it would be the fifth-largest emitter.
Hospitals operate 24/7 with energy-intensive equipment (MRI, CT, sterilization), strict climate control requirements, and high-volume supply chains for pharmaceuticals and disposable medical devices.
Anesthetic gases like desflurane and nitrous oxide are potent greenhouse gases. Desflurane has a global warming potential 2,540 times that of CO2. Switching to low-GWP alternatives can dramatically reduce surgical emissions.
Yes. NHS England has committed to net-zero by 2045 (Scope 1&2) and 2045 for its full supply chain, with an interim 80% reduction by 2032.
Data represents global averages for 2023. Actual emissions vary by company, region, and methodology.