Climate change, Greenhouse gases, Single Health Service, Sustainability, Race to Zero.

Climate change is changes in temperature and climate patterns that have intensified over the years mainly due to Greenhouse Gas (GHG) emissions. There are several initiatives at a global level to achieve decarbonization through the reduction, or even mitigation, of the negative impacts promoted by them, for example, the quantification and monitoring of emissions through instruments such as GHG inventories. In this context, the health service, one of the areas most impacted by the consequences of climate change, is the fifth largest emitter of GHGs, whose contribution is equivalent to 4.4% of total global emissions. Therefore, this work aims to evaluate the contribution to global net GHG emissions referring to Scope 2, using the Brazilian GHG Protocol Program tool, of a Hospital Complex located in the city of Salvador/BA and propose an environmental policy model for the health units linked to the Unified Health Service (SUS) detailing guidelines regarding energy efficiency, socio- environmental responsibility, resource, and supplier management. To this end, the study will be based on: i- literature review; ii- collection of quantitative data regarding the complex’s energy consumption; iii- discussion and analysis of data; iv- elaboration of low carbon environmental policy. It should be noted that not regarding Scope 2, the health unit studied is responsible for more than 200 tons of CO2 in the atmosphere, in addition, in general terms, it does not have planned and consolidated environmental policies capable of identifying negative environmental impacts promoted and mitigation actions. When compared with other SUS units, the reality is no different, which, in turn, demonstrates the need for policies capable of interconnecting environmental, social and health aspects, in order to guarantee the quality of care provided and the reduction of illnesses that affect society.