Narges Nozadashan - Director of Research Office, water & wastewater company, East Azerbaijan, Iran
Akbar Mohammadzadeh - Director of Management Development Group, water & wastewater company, East Azerbaijan, Iran
Sara Nikmaram - Director of the Center for Monitoring and Supervision of Water and Wastewater Quality, water & wastewater company, East Azerbaijan, Iran

Global warming and climate change are caused by excess emissions of greenhouse gases (GHGs) (i.e., carbon dioxide (CO۲) and methane), which are major problems for the environment. Estimates of GHGs can be obtained from the carbon footprint analysis. This research measures the carbon footprint in a wastewater treatment plant in Maragheh city (Iran) by utilizing the Greenhouse Gas Protocol (GGP), a framework for tracking direct and indirect carbon emissions. According to the GGP framework, all energy consumption sectors in the Maragheh wastewater treatment plant is identified and then quantified to carbon footprint through the use of coefficients for each sector. The GGP framework is divided into three categories including scope ۱ (fuel combustion, company vehicles, fugitive emissions), scope ۲ (electricity), and scope ۳ (purchased goods and services, employee commuting, waste disposal, transportation and distribution).

Global warming, greenhouse gases, carbon footprint, energy consumption.