Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-study

Hospitals are major contributors to climate change. It is therefore essential to identify the main sources of hospitals’ greenhouse gas (GHG) emissions to develop and monitor mitigation measures. Yet, a transparent and comprehensive hospital-specific GHG accounting methodology is currently lacking....

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Main Authors: Claudia Quitmann, Leonard Terres, Andy Maun, Rainer Sauerborn, Emma Reynolds, Till Bärnighausen, Alina Herrmann, Bernd Franke
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Cleaner Environmental Systems
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Online Access:http://www.sciencedirect.com/science/article/pii/S266678942500008X
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author Claudia Quitmann
Leonard Terres
Andy Maun
Rainer Sauerborn
Emma Reynolds
Till Bärnighausen
Alina Herrmann
Bernd Franke
author_facet Claudia Quitmann
Leonard Terres
Andy Maun
Rainer Sauerborn
Emma Reynolds
Till Bärnighausen
Alina Herrmann
Bernd Franke
author_sort Claudia Quitmann
collection DOAJ
description Hospitals are major contributors to climate change. It is therefore essential to identify the main sources of hospitals’ greenhouse gas (GHG) emissions to develop and monitor mitigation measures. Yet, a transparent and comprehensive hospital-specific GHG accounting methodology is currently lacking. We have developed a hybrid methodology that follows the GHG Protocol Corporate Accounting and Reporting Standard to calculate emissions. We used bottom-up approaches to scope 1 and 2 and, where feasible, to scope 3. Due to data scarcity, we used top-down approaches for several scope-3-categories. As a case study demonstration, we applied this methodology to a German university hospital: Scope 3 accounted for the majority of GHG emissions (164,529 t CO2e (71%)), while scopes 1 (6008 t CO2e (3%)) and 2 (60,565 t CO2e (26%)) contributed less. Methodological challenges remain, such as a limited accuracy and monitoring options for top-down approaches. Nonetheless, this case study demonstrates that the developed methodology supports hospitals in measuring GHG emissions as part of their regulatory requirements and responsibility to safeguard planetary health.
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issn 2666-7894
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series Cleaner Environmental Systems
spelling doaj-art-77e491aa4a994d5489ffecb4555f4c022025-02-02T05:29:25ZengElsevierCleaner Environmental Systems2666-78942025-03-0116100262Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-studyClaudia Quitmann0Leonard Terres1Andy Maun2Rainer Sauerborn3Emma Reynolds4Till Bärnighausen5Alina Herrmann6Bernd Franke7Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Im Neuenheimer Feld 324, 69120, Heidelberg, Germany; Corresponding author.Institute of General Practice / Family Medicine, Faculty of Medicine and Medical Center, University of Freiburg, Elsässerstr. 2m, 79110, Freiburg, GermanyInstitute of General Practice / Family Medicine, Faculty of Medicine and Medical Center, University of Freiburg, Elsässerstr. 2m, 79110, Freiburg, GermanyHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Im Neuenheimer Feld 324, 69120, Heidelberg, GermanyHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Im Neuenheimer Feld 324, 69120, Heidelberg, GermanyHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Im Neuenheimer Feld 324, 69120, Heidelberg, GermanyHeidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Im Neuenheimer Feld 324, 69120, Heidelberg, Germany; Institute for General Medicine, University Hospital Cologne, Medial Faculty Cologne University, Kerpenerstraße 62, 50937, Köln, GermanyInstitut für Energie- und Umweltforschung (ifeu), Wilckensstr. 3, 69120, Heidelberg, GermanyHospitals are major contributors to climate change. It is therefore essential to identify the main sources of hospitals’ greenhouse gas (GHG) emissions to develop and monitor mitigation measures. Yet, a transparent and comprehensive hospital-specific GHG accounting methodology is currently lacking. We have developed a hybrid methodology that follows the GHG Protocol Corporate Accounting and Reporting Standard to calculate emissions. We used bottom-up approaches to scope 1 and 2 and, where feasible, to scope 3. Due to data scarcity, we used top-down approaches for several scope-3-categories. As a case study demonstration, we applied this methodology to a German university hospital: Scope 3 accounted for the majority of GHG emissions (164,529 t CO2e (71%)), while scopes 1 (6008 t CO2e (3%)) and 2 (60,565 t CO2e (26%)) contributed less. Methodological challenges remain, such as a limited accuracy and monitoring options for top-down approaches. Nonetheless, this case study demonstrates that the developed methodology supports hospitals in measuring GHG emissions as part of their regulatory requirements and responsibility to safeguard planetary health.http://www.sciencedirect.com/science/article/pii/S266678942500008XHealth careGreenhouse gas emissionsCarbon footprintHospitalClimate changeMitigation
spellingShingle Claudia Quitmann
Leonard Terres
Andy Maun
Rainer Sauerborn
Emma Reynolds
Till Bärnighausen
Alina Herrmann
Bernd Franke
Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-study
Cleaner Environmental Systems
Health care
Greenhouse gas emissions
Carbon footprint
Hospital
Climate change
Mitigation
title Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-study
title_full Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-study
title_fullStr Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-study
title_full_unstemmed Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-study
title_short Assessing greenhouse gas emissions in hospitals: The development of an open-access calculator and its application to a German case-study
title_sort assessing greenhouse gas emissions in hospitals the development of an open access calculator and its application to a german case study
topic Health care
Greenhouse gas emissions
Carbon footprint
Hospital
Climate change
Mitigation
url http://www.sciencedirect.com/science/article/pii/S266678942500008X
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