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Anesthetic gases represent 15% of the hospital's overall carbon footprint, thus the importance of reducing their use and finding alternatives to minimize the environmental footprint associated with the process. This case study comprises all of the hospital’s operating rooms, including those at headquarters and the Santa Ana branch.

This case study highlights the implementation of energy conservation measures and use of renewable energy to increase efficiency. It also shows how the carbon footprint of Aravind Eye Care was calculated using the climate impact checkup tool to show a 33% reduction from 2018 to 2022.

Sunway Medical Centre Velocity (SMCV) is the first hospital in Malaysia to commit to Race to Zero by 2050. SMCV started to monitor carbon emissions via the climate impact checkup tool. Sustainability initiatives are implemented within the hospital according to the 10 Global Green and Healthy Hospitals interconnected goals, which have impacted the health promotion of our employees.

Implementation of actions targeted at reducing the climate footprint (and consequently the health impacts associated with climate change), including the consumption of energy from clean sources and the substitution of diesel with natural gas as fuel in boilers.

This case study reflects the health care waste management innovation of Health Environment and Climate Action Foundation (HECAF360) under the Water, Sanitation and Hygiene Sustainable Development Goal (WASH SDG) Innovation Fund in partnership with the local Plan International Nepal and the Health Care Without Harm network. This project has installed safe, sustainable health care waste management with smart autoclaving technology that incorporates remote monitoring devices. This system prevents open waste burning and keeps waste from going to the landfill, which reduces greenhouse gasses such as methane and carbon dioxide.

This case study highlights Mary Johnston Hospital’s energy solutions in response to the global call for environmental stewardship. It will also discuss the challenges, opportunities, and outcomes from each phase of the projects.

The summary is based on the initiative's implementation, which ran from January 2022 to May 2023.

St. Paul's Hospital of Iloilo is a health facility that prioritizes environmental sustainability. The primary goal of this initiative is to alleviate financial and resource burdens that hospitals experience due to migration of populations, increasing demand, and lifestyle standards of patients. The hospital focused on improving operations without substantial infrastructure alterations to create a sustainable and cost-effective health care system that can cater to growing demands.

The hospital developed an energy reduction plan that centered around the installation of a photovoltaic system to reduce energy use and carbon emissions of the hospital.

A solar photovoltaic (PV) system is a renewable energy technology that converts sunlight into electrical energy. The system consists of several components, including solar panels, inverters, batteries (optional), and other electrical components.
Solar PV systems can be used for a variety of applications, such as lighting, low-power equipment, and small plug loads. This allowed the hospital to reduce energy consumption during the daytime. In addition, it reduces dependency on fossil fuel-based electricity.

The project aims to reduce the waste that ends up in a landfill, promoting the zero-waste-to-landfill site initiative and reducing greenhouse gas emissions. The project was adopted as part of the Global Green and Healthy Hospital goals under waste in September 2019.

The transition from offsite and outsourced to onsite treatment of infectious waste has significantly reduced George Hospital’s carbon footprint. The installation of equipment that treats health care risk waste (hazardous waste) through mechanical – and microwave technology that allows for its safe disposal in a local landfill reduces emissions from incineration, which is the main form of treating health care risk waste in South Africa.

The Galician Health Service has introduced electric ambulances at the Ourense hospitals to address emissions from medical transport. The ambulances perform very well and help significantly reduce costs, as well as, CO2 emissions. They are best suited to non-urgent complementary services, such as the transfer of patients between hospitals.

By removing high-emissions anesthetics from operating theatres and implementing low-flow anesthesia machines, Raigmore Hospital significantly reduced emissions produced by their operating theatres. This initiative was implemented as a part of the Green Theatre Project, which consists of 11 actions to make operating theatres more sustainable. The project was so effective that it was integrated into the NHS Scotland climate emergency and sustainability strategy for 2022 through 2026 as the national green theatres program.