Estimation of carbon footprint: a case study for Middle East Technical University

Turanlı, Ayşe Merve
As the amount of the greenhouse gas emission increases, its effect on climate change becomes accordingly important. This fact is proved by the measurements conducted by NASA in terms of mole fraction of CO2. After 1950’s due to rapid rise in industrial activity of post-industrial revolution period, CO2 amount in the air increased constantly. Atmospheric concentration of CO2 increases at an accelerating rate . In year 2014, the CO2 emission value had reached 398.78 ppm. This increase led the investigators to estimate the carbon footprint of daily activities as well as industrial activities. There are many initiatives dealing with the estimation of the carbon footprint due to its critical role in the sustainability which is a way of finding optimal solution for living by considering all economic, social, and environmental aspects of life. Measurement and analysis of carbon footprint is not a new topic however, the methodology and systematic approach is necessary within today’s context. The aim of this thesis is to estimate total carbon footprint of the Middle East Technical University Campus Area in Ankara, consisting of man-made university facilities together with artificial forest and a natural lake. Several carbon emitting activities such as transportation, use of electricity, use of natural gas, food consumption are investigated using 14 years data (2000-2014). METU Forest treated as sink of carbon dioxide and 57.415,72 tons of CO2 is absorbed until 2007. Although, in the beginning of the thesis, Lake Eymir also assumed as a sink, the research showed that, it is not. It is seen that the major carbon dioxide emission source in 14 years shifts from natural gas consumption to transportation related activities. Investigations show that the main reason is the energy savings activities in the heating system. In 2014, carbon dioxide emission shares of electricity consumption, transportation related activities, natural gas consumption for heating, and nutritional needs are 40%, 31%, 25% and 4% respectively. In year 2014, 1815,96 kg CO2 / capita and 91,67 kg CO2 / m2 is calculated at METU Campus in Ankara as the result of deterministic approach. In order to account for the uncertainty in some of the variables the Monte Carlo Simulation was performed. Results show that with 10% probability 50.142.789,54 kg CO2, 50% probability 53.718.530,31 kg CO2 is emitted to the atmosphere in year 2014. Most likely with 90% probability the total CO2 56.036.497,75 kg of CO2 is emitted to the atmosphere by METU Campus Ankara Facility.


Economic growth and environment nexus: environmental Kuznets curve
Özokcu, Selin; Yücel, İsmail; Yılmaz, Ayşen; Department of Earth System Science (2015)
Carbon dioxide (CO2) is one of the most important Green House Gases (GHGs) for contributing to global climate change. Human influence on earth through economic development is clearly emitting immense amount of CO2 emissions. Hence, examining the relationship between CO2 emissions and economic growth is crucial. In this study, the relationship between income and CO2 emissions in the context of the Environmental Kuznets Curve (hereafter EKC), which posits the existence of an inverted U-shape relationship betw...
Modelling of carbon sink capacity of the Black Sea
Cengiz, Yelis; Yılmaz, Ayşen; Yücel, İsmail; Department of Earth System Science (2016)
The concentration of carbon dioxide in the atmosphere is constantly increasing due to human activities and results in global warming. Since Industrial Revolution 30 and 25 percentages of the anthropogenic atmospheric carbon dioxide are taken up by the forests and by the oceans respectively. Carbon dioxide is rising faster than biosphere can tolerate and the rest of the carbon dioxide which can not be hold, continues to accumulate and causes further heating of the atmosphere. The carbon sink capacity of the ...
Simulating CO2 sequestration in a depleted gas reservoir
Özkılıç, Öke İsmet; Gümrah, Fevzi; Department of Petroleum and Natural Gas Engineering (2005)
Carbon dioxide is one of the greenhouse gases which have strong impacts on the environment and its amount in the atmosphere is far beyond to be ignored. Carbon dioxide levels are projected to be reduced by sequestering it directly to the underground. High amounts of carbon dioxide can be safely stored in underground media for very long time periods. Storage in depleted gas reservoirs provides an option for sequestering carbon dioxide. In 2002, production of Kuzey Marmara gas reservoir has been stopped due t...
Geochemical characterization of geothermal systems in Turkey as natural analogues for geological storage of Co2/
Elidemir, Sanem; Güleç, Nilgün Türkan; Department of Geological Engineering (2014)
To mitigate the unfavourable effect of CO2 emission on global warming and climate change, geological storage of CO2 is currently regarded to be one of the major strategies. Deep saline formations constitute one of the alternative reservoirs for hosting the injected CO2 and the information about the behaviour of these reservoirs is provided via the studies of natural analogues. This thesis is concerned with the geothermal systems of Turkey as natural analogues for CO2 storage sites and the evaluation of thei...
Sustainability Assessments of Urban Railway Systems: Case Study Evaluations in Turkey
YÜKSEL, MÜGE; Tanyer, Ali Murat; Pekeriçli, Mehmet Koray (Springer, 2019-01-01)
There are ongoing efforts to control global warming via reducing CO2 emissions, which are mostly based on human activities. Through life cycle assessment (LCA) carbon footprint (CFP) calculations provide a clear picture of embodied carbon (EC). In this study, the significance of EC estimation and reduction for railway projects are explored. The main motivation is having applicable sustainability strategies for railway systems in Turkey. Since there is no certification system, range or database, these effort...
Citation Formats
A. M. Turanlı, “Estimation of carbon footprint: a case study for Middle East Technical University,” M.S. - Master of Science, Middle East Technical University, 2015.