Logan Reid
Hospitals and healthcare systems are like miniature cities: they procure supplies, water, food, and energy; they provide services and transportation; and they produce waste and sewage. All these things consume materials and generate emissions. The healthcare sector is responsible for around 5% of greenhouse gas emissions worldwide, with the US healthcare sector responsible for 8.5% of the country's emissions. Hospitals are one of the largest consumers of chemicals, from chemotherapy for cancer treatment to disinfectants for sterilization, which can have detrimental effects on the environment. They also contribute to food waste, with some hospitals implementing initiatives to divert food waste to compost or donations.
| Characteristics | Values |
|---|---|
| Greenhouse gas emissions | 4.6% worldwide, 8.5% in the US, 4.6% in Canada, 3-4% in the UK, 7% in Australia |
| Carbon emissions | Transportation of goods and services is a large contributor |
| Waste | Food waste, single-use disposable items, medication vials, chemical waste |
| Energy consumption | High rate of energy consumption |
| Water | N/A |
| Wastewater | N/A |
| Green buildings | LEED program, Smart Hospital Toolkit, Green Star-Health v1, Green Star Design & Built v1.3 |
| Food | Food waste, food miles |
| Transportation | N/A |
| Green purchasing policy | N/A |
| Medicines | N/A |
| Chemicals and toxins | Hospitals are large consumers of chemicals |
| Technology | N/A |
| Sustainable care models | N/A |
| Leadership | N/A |
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What You'll Learn
Greenhouse gas emissions
Hospitals, as part of the healthcare sector, play a significant role in generating these emissions. They procure supplies, water, food, and energy; provide services and transportation; and produce waste and sewage. All these activities contribute to their carbon footprint. For example, hospitals are one of the largest consumers of chemicals, from chemotherapy drugs to disinfectants, which can have detrimental environmental effects. Additionally, the transportation of goods and services procured by hospitals accounts for a large amount of carbon emissions.
To reduce their greenhouse gas emissions, hospitals can implement various strategies. These include reducing waste, improving recycling systems, and conserving resources. For instance, the University of Vermont Medical Center (UVMMC) recycled blue wrap, purchasing items made from its own recycled blue wrap waste. Additionally, hospitals can upgrade heating systems to use geothermal energy, reduce food waste, and encourage sustainable modes of transportation for staff.
Furthermore, hospitals can adopt sustainable building practices to reduce their environmental impact. The "Leadership in Energy and Environmental Design" (LEED) program by the United States Green Building Council (USGBC) aims to turn hospitals into sustainable structures by reducing environmental consequences during construction and renovation. Similarly, the Pan American Health Organization (PAHO) has developed the "Smart Hospital Toolkit" to guide hospital administrators in creating smart healthcare infrastructures that conserve resources and lower carbon emissions.
By taking these initiatives to decrease waste and emissions, hospitals can play a crucial role in mitigating climate change and reducing its harmful effects on human health.
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Waste disposal
Hospitals generate thousands of tons of waste each year, including everyday trash such as packaging and food waste, as well as regulated medical waste like plastic gloves and gowns, and blood-saturated items. The waste generated by hospitals is not limited to physical waste but also includes greenhouse gas emissions, with hospitals being the third most energy-intensive commercial buildings.
The disposal of hospital waste is a complex issue that contributes to climate change. The treatment of Health-Care Risk Waste (HCRW), which includes waste from patient diagnostics, immunization, surgery, and therapy, is crucial to prevent the spread of illnesses and pollution. However, the treatment process increases the carbon footprint of the healthcare sector. HCRW is often treated through incineration, which reduces its volume but produces incinerator residues and burned waste that must be landfilled. Landfilling leads to further environmental issues, such as the creation of leachate and methane gas.
The cost of HCRW disposal is also a significant factor, with developing countries struggling to treat waste due to the high costs of waste treatment technologies. Additionally, there is a lack of data on the true costs of HCRW disposal due to commercial sensitivity, and many hospitals lack fundamental knowledge of HCRW solutions and basic waste segregation practices.
To mitigate the impact of waste disposal on climate change, hospitals can implement several strategies. These include switching to reusable medical supplies, improving recycling systems, and establishing waste reduction goals. For example, UC San Diego Health set a goal to reduce waste generation to 20 pounds per adjusted patient day, and they expanded their recycling programs and staff education initiatives. Hospitals can also collaborate with organizations like The Afya Foundation to distribute surplus medical supplies to underserved health systems worldwide, reducing waste and helping those in need.
Furthermore, hospitals can address food waste by composting or donating excess food to local organizations, and by offering more vegan and vegetarian meal options to reduce the environmental impact of food production. These combined efforts can help hospitals reduce their waste disposal contribution to climate change and promote a greener and more sustainable healthcare system.
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Energy consumption
Hospitals and healthcare systems are like miniature cities, requiring supplies, water, food, and energy to function. They also produce waste and sewage. All these activities consume materials and generate emissions. Energy consumption is a significant contributor to the environmental impact of hospitals.
A 2012 study by Lawrence H. Brown et al. investigated the rate of energy consumption and its environmental impact on health services. They found that while the rate of energy consumption and greenhouse gas emissions per hospital bed was relatively low, it was still a significant figure. The study emphasized that reducing energy consumption in healthcare centers could make a notable contribution to mitigating energy shortages and climate change.
Hospitals are indeed taking steps to address their energy consumption and associated emissions. For example, Massachusetts General Hospital has reduced anesthetic gas emissions by approximately 50%. Providence, a healthcare organization, has committed to becoming carbon negative, aiming to reduce emissions by 5% per year. Additionally, the University of Vermont Medical Center (UVMMC) has taken the initiative to recycle blue wrap, the material used to package sterile equipment and supplies. UVMMC collects this waste, recyles it, and even purchases items made from their recycled blue wrap, such as washbasins and bedpans.
To further reduce their environmental impact, hospitals can implement sustainable practices such as upgrading heating systems to use geothermal energy, improving recycling systems, and reducing food waste. The "Leadership in Energy and Environmental Design" (LEED) program, introduced by the United States Green Building Council (USGBC), aims to transform hospitals into sustainable structures by reducing the environmental impact of construction and renovation. Additionally, the Pan American Health Organization (PAHO) has developed the "Smart Hospital Toolkit" to guide hospital administrators in creating smart healthcare infrastructures that conserve resources and lower carbon emissions.
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Transportation
The impact of transportation on the carbon footprint of hospitals is significant. Hospitals require a constant supply of medical equipment, pharmaceuticals, and other consumables, which often need to be transported over long distances. This contributes to the carbon emissions associated with the healthcare sector's supply chain. Furthermore, hospitals also contribute to emissions through the transportation of patients and staff. Many patients and their families travel to hospitals for appointments, treatments, and emergencies, often relying on private vehicles or ambulances, which further adds to the carbon footprint.
To mitigate the environmental impact of transportation, hospitals can implement several strategies. Encouraging the use of public transportation, carpooling, or providing shuttle services for staff and patients can reduce the number of vehicles on the road. Additionally, hospitals can invest in electric or hybrid vehicles for their fleets, including ambulances, to lower emissions during patient transport and emergency responses.
Some hospitals have already taken initiatives to address this issue. For example, Mass General Brigham has implemented a comprehensive transportation program to minimize the number of single-occupancy vehicles, reducing traffic congestion and associated emissions. Similarly, the Ohio State University Wexner Medical Center has been recognized for its efforts in promoting local food production and active transportation, such as walking and biking, to reduce the carbon footprint associated with transportation.
Furthermore, hospitals can also focus on reducing the need for transportation by utilizing telehealth and digital tools. By offering remote consultations and monitoring, hospitals can decrease the number of patient and staff trips, thereby lowering emissions from travel. Additionally, hospitals can prioritize sustainable procurement practices, selecting suppliers that utilize environmentally friendly transportation methods and optimizing delivery routes to reduce the overall carbon footprint of their supply chain.
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Single-use plastics
Hospitals and clinics generate vast amounts of plastic waste, with the US healthcare sector alone producing 1.7 million tons of plastic pollution annually. Single-use plastics are prevalent in hospitals due to their sterility, durability, and convenience. However, their overuse contributes significantly to climate change and pollution.
The production, use, and disposal of single-use plastics in hospitals have several environmental and health impacts. Plastic production requires fossil fuels and contributes significantly to global carbon emissions, warming the climate. Incineration of plastic waste, common in hospitals, releases heat-trapping gases and toxic chemicals, posing risks to nearby communities, particularly those of color and with low incomes. Plastic waste that ends up in landfills or the ocean also contributes to environmental degradation and pollution.
To address the issue of single-use plastics, hospitals can implement sustainable practices and adopt alternative solutions. Some hospitals have successfully replaced single-use items in operating rooms with reusable ones, such as surgical basins and sterilization wraps, reducing waste and costs. Reusable medical gowns can also significantly reduce plastic pollution and save expenses. Additionally, hospitals can improve waste management practices, increase recycling rates, and redesign packaging to minimize plastic usage.
It is important to note that collective action and innovation are crucial in tackling the complex challenge of healthcare plastic pollution. Hospitals can leverage their purchasing power to prioritize PVC-free and phthalate-free medical equipment and support sustainable manufacturers. Initiatives like the Healthcare Plastics Recycling Council offer toolkits to help hospitals improve their recycling programs and join recycling networks. By taking decisive action, hospitals can play a significant role in reducing their environmental impact and contributing to global efforts to address climate change.
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Frequently asked questions
The healthcare sector is responsible for around 5% of worldwide greenhouse gas emissions. In the US, the healthcare sector is responsible for 8.5% of the country's greenhouse gas emissions, a share that has increased over the years. In Canada, the healthcare sector accounted for 4.6% of national greenhouse gas emissions between 2009 and 2015.
Hospitals are like miniature cities, with various departments contributing to emissions. Sources include transportation, food waste, energy consumption, chemical waste, and single-use disposable items.
Hospitals can implement a range of strategies to reduce their carbon footprint and environmental impact. These include:
- Reducing waste and improving recycling systems
- Upgrading heating systems to use geothermal energy
- Encouraging sustainable commuting options for staff
- Joining initiatives like the LEED program to turn hospitals into sustainable structures
- Reducing anesthetic gas emissions
- Donating unused food
- Recycling and repurposing waste like blue wrap
- Reducing the carbon footprint of purchased goods and services
