Sustainability in Hospitals: Toward Environmentally Friendly and Operationally Efficient Healthcare Hospitals are among the highest consumers of energy and significant contributors to carbon emissions due to their intensive reliance on electricity, water, medical equipment, transportation, and associated logistical services. In this context, integrating environmental sustainability principles within hospitals has become a strategic necessity—not only to protect the environment but also to enhance operational efficiency and deliver sustainable, effective healthcare services. These principles include adopting renewable energy sources such as solar and wind power, as well as implementing smart, energy-efficient lighting and air-conditioning systems. Digital transformation also plays a vital role; tools such as electronic medical records and digital communication technologies help reduce paper use and minimize unnecessary travel, leading to a notable reduction in transportation- and printing-related carbon emissions. Resource management is a key component of sustainability in healthcare facilities. This involves optimizing schedules for supplying medications and medical consumables to reduce transport frequency, using monitoring systems to track energy and water consumption for optimal efficiency, and improving medical waste disposal methods by adopting recycling-friendly processes. Sustainable hospitals also emphasize internal awareness among medical staff and employees, encouraging daily eco-friendly practices such as conserving energy and water, recycling, and minimizing resource waste. This approach helps embed sustainability as part of the hospital’s daily culture. In conclusion, integrating sustainability into hospital systems is a long-term investment that benefits the environment, reduces costs, enhances public health, and strengthens the hospital’s reputation as a socially and environmentally responsible institution—all while ensuring safe and effective patient care.