Climate change poses a critical challenge to global health, influencing social and environmental determinants such as housing, air and water quality, and food security. This article explores the profound impact of climate change on health, projecting an additional 250,000 annual deaths from various climate-related diseases between 2030 and 2050. Healthcare systems significantly contribute to global carbon emissions. The concept of the "Green Hospital" is introduced as a paradigm shift in healthcare, focusing on optimizing resource efficiency and minimizing environmental impact. This concept includes renewable energy integration, natural lighting, sustainable materials, green roofs, and smart building management systems. Challenges remain, such as medical waste management, water conservation, chemical use, pollution, and plastic usage in healthcare settings. Obstacles to green hospital initiatives include system redundancy, regulatory compliance, operational demands, financial constraints, and cultural resistance. An urgent reformation of healthcare systems is needed to align with eco-friendly and sustainable practices, highlighting the necessity to reduce CO₂ emissions and manage resources and waste more effectively to meet the evolving health needs of a growing and aging global population. The healthcare industry is lagging on environmental issues, with excessive energy consumption and weak waste management being the main contributors. Urgent action is required to address this. The pursuit of green development stands as a paramount challenge, arguably the most significant, of the 21st Century. This crucial importance of sustainable development was acknowledged much earlier, dating back to the United Nations Conference on the Human Environment held in Stockholm in 1972. The hospital can contribute to maintaining the good health of the population by managing its carbon emissions effectively and adopting an eco-friendly action plan. As healthcare professionals, our responsibility is not only to treat but also to prevent diseases. This requires a green/eco-friendly management of our healthcare system. Green hospitals prioritize sustainable materials, renewable energy, natural lighting, and green roofs. They also implement smart building management systems to optimize energy efficiency and monitor environmental conditions. Initiatives include medical waste management, water conservation, chemical use reduction, pollution control, plastic reduction, sustainable food practices, and eco-friendly cleaning products. Financial benefits of green hospitals include cost savings from energy efficiency, waste management, and sustainable practices. However, barriers such as system redundancy, regulatory compliance, operational demands, financial constraints, and cultural resistance hinder the adoption of green hospital practices. The article concludes that climate change is one of the most pressing challenges of our time, requiring drastic reductions in carbon emissions, better resource and waste management, and continued efforts to meet the health needs of a growing and aging population.Climate change poses a critical challenge to global health, influencing social and environmental determinants such as housing, air and water quality, and food security. This article explores the profound impact of climate change on health, projecting an additional 250,000 annual deaths from various climate-related diseases between 2030 and 2050. Healthcare systems significantly contribute to global carbon emissions. The concept of the "Green Hospital" is introduced as a paradigm shift in healthcare, focusing on optimizing resource efficiency and minimizing environmental impact. This concept includes renewable energy integration, natural lighting, sustainable materials, green roofs, and smart building management systems. Challenges remain, such as medical waste management, water conservation, chemical use, pollution, and plastic usage in healthcare settings. Obstacles to green hospital initiatives include system redundancy, regulatory compliance, operational demands, financial constraints, and cultural resistance. An urgent reformation of healthcare systems is needed to align with eco-friendly and sustainable practices, highlighting the necessity to reduce CO₂ emissions and manage resources and waste more effectively to meet the evolving health needs of a growing and aging global population. The healthcare industry is lagging on environmental issues, with excessive energy consumption and weak waste management being the main contributors. Urgent action is required to address this. The pursuit of green development stands as a paramount challenge, arguably the most significant, of the 21st Century. This crucial importance of sustainable development was acknowledged much earlier, dating back to the United Nations Conference on the Human Environment held in Stockholm in 1972. The hospital can contribute to maintaining the good health of the population by managing its carbon emissions effectively and adopting an eco-friendly action plan. As healthcare professionals, our responsibility is not only to treat but also to prevent diseases. This requires a green/eco-friendly management of our healthcare system. Green hospitals prioritize sustainable materials, renewable energy, natural lighting, and green roofs. They also implement smart building management systems to optimize energy efficiency and monitor environmental conditions. Initiatives include medical waste management, water conservation, chemical use reduction, pollution control, plastic reduction, sustainable food practices, and eco-friendly cleaning products. Financial benefits of green hospitals include cost savings from energy efficiency, waste management, and sustainable practices. However, barriers such as system redundancy, regulatory compliance, operational demands, financial constraints, and cultural resistance hinder the adoption of green hospital practices. The article concludes that climate change is one of the most pressing challenges of our time, requiring drastic reductions in carbon emissions, better resource and waste management, and continued efforts to meet the health needs of a growing and aging population.