Bilecik Şeyh Edebali Üniversitesi Karbon Ayak İzi Değerlendirmesi: Emisyon Kaynaklarının Belirlenmesi ve Karşılaştırmalı Analizi

Öz

Üniversiteler, operasyonel faaliyetleri nedeniyle doğrudan ve dolaylı olarak önemli çevresel etkilere sahiptir. Bu nedenle, yükseköğretim kurumlarında karbon ayak izi değerlendirmelerinin yapılması, iklim değişikliği ile ilişkili risklerin azaltılmasında kritik bir rol oynamaktadır. Bu çalışma, Bilecik Şeyh Edebali Üniversitesi'nin (BŞEÜ) emisyon kaynaklarını belirlemek ve azaltım stratejileri geliştirmek amacıyla gerçekleştirilmiştir. Analiz süreci ISO 14064-1 standardı ve Sera Gazı Protokolü metodolojisine dayanmaktadır. Emisyonlar, doğrudan, enerjiden kaynaklı dolaylı ve diğer dolaylı emisyonlar olmak üzere üç ana kategoride incelenmiştir. Üniversitenin toplam emisyonu 2022 yılında 3601 ton karbon dioksit eşdeğer (CO₂ eşd.) iken, 2023 yılında 3223 ton CO₂ eşd. seviyesine gerilemiştir. Her iki yıl için de en baskın emisyon kaynağı %55,1'lik pay ile doğal gaz tüketimi olmuştur. Elde edilen sonuçlar, literatürdeki diğer üniversite verileriyle karşılaştırıldığında BŞEÜ’nün kişi başı yıllık 0,188 ton CO₂ eşd. olan emisyon değerinin kişi başı hesaplanan en düşük değer olduğu tespit edilmiştir. Literatürde diğer üniversiteler için hesaplanan kişi başı emisyon değerlerinden hareketle Türkiye yükseköğretim sisteminin toplam karbon ayak izinin 1,4-13,7 milyon ton CO₂ eşd. aralığında değişebileceği hesaplanmıştır. Bu çalışma, üniversitenin kurumsal karbon envanterini ilk kez somut verilerle ortaya koyması ve kampüsün iklim değişikliği ile mücadele stratejileri için temel oluşturması bakımından büyük önem taşımaktadır.

Anahtar Kelimeler

• Karbon Ayak İzi
• Yükseköğretim
• Sürdürülebilirlik
• Sera Gazı Emisyonları
• Çevre Bilinci

Teşekkür

Yazarlar Bilecik Şeyh Edebali Üniversitesi’ne teşekkür eder.

Bilecik Seyh Edebali University Carbon Footprint Assessment: Identification of Emission Sources and Comparative Analysis

Öz

Universities have significant direct and indirect environmental impacts arising from their operations. Therefore, conducting carbon footprint assessments in higher education institutions plays a critical role in mitigating climate change-related risks. This study was conducted to identify the emission sources of Bilecik Şeyh Edebali University (BŞEU) and develop reduction strategies. The analysis process is based on the ISO 14064-1 standard and the Greenhouse Gas Protocol methodology. Emissions were examined in three main categories: direct, energy-related indirect, and other indirect emissions. The university's total emissions were 3,601 tons of CO₂ eq. in 2022, while they decreased to 3,223 tons of carbon dioxide equivalent (CO₂ eq.) in 2023. For both years, the dominant emission source was natural gas consumption, accounting for 55.1% of the total. The results obtained indicate that, when compared with data from other universities reported in the literature, BŞEU’s emission value of 0.188 tons of CO₂ equivalent per capita per year is the lowest calculated per capita emission value. Based on the per capita emission values calculated for other universities in the literature, it was estimated that the total carbon footprint of the Turkish higher education system could range between 1.4 and 13.7 million tons of CO₂ eq. This study is of great importance as it presents the university's corporate carbon inventory with concrete data for the first time and lays the foundation for the campus's climate change mitigation strategies.

Anahtar Kelimeler

• Carbon Footprint
• Higher Education
• Sustainability
• GHG Emissions
• Environmental Awareness

Teşekkür

The authors would like to thank Bilecik Şeyh Edebali University.

Kaynakça

1. M. S. Mancini et al., "Ecological Footprint: Refining the carbon Footprint calculation," Ecological Indicators, vol. 61, pp. 390-403, 2016/02/01/ 2016.
2. I. Karlsson, J. Rootzén, and F. Johnsson, "Reaching net-zero carbon emissions in construction supply chains – Analysis of a Swedish road construction project," Renewable and Sustainable Energy Reviews, vol. 120, p. 109651, 2020/03/01/ 2020.
3. F. Germirli Babuna, B. Baş, B. Atılgan Türkmen, and N. Elginöz Kanat, "Türk Endüstrisi için Temiz Üretim ve Yaşam Döngüsü Değerlendirmesi Örnekleri," (in tr), Çevre İklim ve Sürdürülebilirlik, vol. 24, no. 2, pp. 55-64, November 2023.
4. UNFCCC, "Kyoto Protocol. United Nations Framework Convention on Climate Change. Dec. 10, 1997, 2303 U.N.T.S. 162," 1997.
5. T. Gao, Q. Liu, and J. Wang, "A comparative study of carbon footprint and assessment standards," International Journal of Low-Carbon Technologies, vol. 9, no. 3, pp. 237-243, 2013.
6. B. Atılgan Türkmen and G. Çolak, "Kurumsal Karbon Ayak İzi Analizi: Bir Kimya Fabrikası için Örnek Hesaplama," (in tr), Doğal Afetler ve Çevre Dergisi, vol. 9, no. 1, pp. 191-201, January 2023.
7. J. Kiehle, M. Kopsakangas-Savolainen, M. Hilli, and E. Pongrácz, "Carbon footprint at institutions of higher education: The case of the University of Oulu," Journal of Environmental Management, vol. 329, p. 117056, 2023/03/01/ 2023.
8. D. Satola, M. Balouktsi, T. Lützkendorf, A. H. Wiberg, and A. Gustavsen, "How to define (net) zero greenhouse gas emissions buildings: The results of an international survey as part of IEA EBC annex 72," Building and Environment, vol. 192, p. 107619, 2021/04/01/ 2021.

9. I. M. Tijjani Usman, Y.-C. Ho, L. Baloo, M.-K. Lam, and W. Sujarwo, "A comprehensive review on the advances of bioproducts from biomass towards meeting net zero carbon emissions (NZCE)," Bioresource Technology, vol. 366, p. 128167, 2022/12/01/ 2022.
10. IEA, "Net Zero by 2050: A Roadmap for the Global Energy Sector. International Energy Agency. OECD Publishing, Paris, https://doi.org/10.1787/c8328405-en.," 2021.
11. S. Fankhauser et al., "The meaning of net zero and how to get it right," Nature Climate Change, vol. 12, no. 1, pp. 15-21, 2022/01/01 2022.
12. A. Shubbar, M. Nasr, M. Falah, and Z. Al-Khafaji, "Towards Net Zero Carbon Economy: Improving the Sustainability of Existing Industrial Infrastructures in the UK," vol. 14, no. 18, p. 5896, 2021.
13. D. Pandey, M. Agrawal, and J. S. Pandey, "Carbon footprint: current methods of estimation," Environmental Monitoring and Assessment, vol. 178, no. 1, pp. 135-160, 2011/07/01 2011.
14. UNFCCC, "Paris Agreement, Report of the Conference of the Parties to the United Nations Framework Convention on Climate Change," in "21st Session," HeinOnline, Paris2015, vol. 4.
15. UN. (2023, 12.06.2024). United Nations, Sustainable Development Goals Report Available: https://sdgs.un.org/goals
16. V. G. Lo-Iacono-Ferreira, J. I. Torregrosa-López, and S. F. Capuz-Rizo, "Use of Life Cycle Assessment methodology in the analysis of Ecological Footprint Assessment results to evaluate the environmental performance of universities," Journal of Cleaner Production, vol. 133, pp. 43-53, 2016/10/01/ 2016.
17. T. d. A. Rocha, L. B. Silva, E. B. B. M. Alves, and L. A. G. Jacovine, "Carbon footprint in an educational institution and compensation potential in urban forests," Environmental Development, vol. 46, p. 100860, 2023/06/01/ 2023.
18. S. Dağlıoğlu, "Carbon Footprint Analysis of Ege University within the Scope of Environmental Sustainability," Commagene Journal of Biology, 2021-06-30 2021.
19. S. Tırınk and H. A. Özen, "Yükseköğretim Kurumlarında Karbon Ayak İzinin Belirlenmesi: Iğdır Üniversitesi Örneği," Journal of the Institute of Science and Technology, 2023-11-30 2023.
20. J. Kiehle, M. Kopsakangas-Savolainen, M. Hilli, and E. Pongrácz, "Carbon footprint at institutions of higher education: The case of the University of Oulu," Journal of environmental management, vol. 329, p. 117056, 2022-12-20 2022.
21. M. Moerschbaecher and J. W. Day, "The Greenhouse Gas Inventory of Louisiana State University: A Case Study of the Energy Requirements of Public Higher Education in the United States," vol. 2, no. 7, pp. 2117-2134, 2010.
22. WRI and WBCSD, The Greenhouse Gas Protocol: a Corporate Accounting and Reporting Standard, Revised Edition. World Resources Institute & World Business Council for Sustainable Development. 2004, p. 116.
23. ISO, " ISO 14064-1:2018 Greenhouse gases — Part 1: Specification with guidance at the organization level for quantification and reporting of greenhouse gas emissions and removals. International Organization for Standardization. Geneva," 2018.
24. BSI, "PAS 2060:2014 Specification for the demonstration of carbon neutrality. British Standards Institution " 2014.
25. IPCC, "IPCC Guidelines for National Greenhouse Gas Inventories: Volume 1 – General Guidance and Reporting. Prepared by the National Greenhouse Gas Inventories Programme. Intergovernmental Panel on Climate Change. ," IGES2006.
26. IPCC, "Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories: Volume 1 – General Guidance and Reporting. Intergovernmental Panel on Climate Change. ," IGES2019.
27. IPCC, "Intergovernmental Panel on Climate Change guidelines for national greenhouse gas inventories. Eggleston, H. S., Buendia, L., Miwa, K., Ngara, T., & Tanabe, K. (Eds.). Institute for Global Environmental Strategies (IGES)." 2006.
28. DEFRA, "Department for Environment, Food & Rural Affairs, Government emission conversion factors for greenhouse gas company reporting. UK Government.," 2021.
29. BŞEU. (2025, 10.11.2025). Bilecik Şeyh Edebali Üniversitesi, Yeşil Kampüs. Available: https://www.bilecik.edu.tr/yesilkampus/
30. Google Earth. (2025, 25.12.2025). Bilecik Şeyh Edebali Üniversitesi Ana Kampüsü, Bilecik, Türkiye. Available: https://earth.google.com/web/
31. B. Düz. (2016, 21.02.2026). Bilecik Şeyh Edebali Üniversitesi Yerleşkesi [Fotoğraf]. Wikimedia Commons. Available: https://commons.wikimedia.org/w/index.php?curid=50494598
32. BŞEU. (2021, 21.02.2026). Bilecik Seyh Edebali University Circularity Report. Available: https://www.bilecik.edu.tr/dosya/19213_ddd3_Surdurulebilirlik-Raporu-2021.pdf
33. BŞEU. (2022, 21.02.2026). Bilecik Seyh Edebali University Circularity Report. Available: https://www.bilecik.edu.tr/dosya/19214_639c_Surdurulebilirlik-Raporu-2022%20(2).pdf
34. BŞEU. (2023, 21.02.2026). Bilecik Seyh Edebali University Circularity Report. Available: https://www.bilecik.edu.tr/dosya/19212_9ef5_S%C3%BCrd%C3%BCr%C3%BClebilirlik%20Raporu%20-%202023-r%20(1).pdf
35. ÇŞİDB. (2017, 11.03.2026). Sıfır Atık Projesi Çevre, Şehircilik ve İklim Değişikliği Bakanlığı. Available: https://sifiratik.gov.tr/T.C
36. Sıfır Atık Yönetmeliği. (2019, 09.02.2026). Sıfır Atık Yönetmeliği. Resmî Gazete (Sayı: 30829). Available: https://www.resmigazete.gov.tr/eskiler/2019/07/20190712-9.htm
37. Uritac. (2025, 20.02.2026). Uritac Susuz Pisuvar. Available: https://www.susuzpisuvar.com.tr/sayfa-detay/Susuz-Pisuvar.html
38. ÇŞİDB. (2023, 11.03.2026). Türkiye Ulusal Seragazı Envanter Raporu. T.C. Çevre, Şehircilik ve İklim Değişikliği Bakanlığı. Available: . https://birim.csb.gov.tr/
39. Atatürk Üniversitesi. (2021, 10.03.2026). Karbon Ayak İzi Raporu. Sürdürülebilir Ofis Koordinatörlüğü. Available: https://sdg.atauni.edu.tr/wp-content/uploads/2021/04/KARBON-AYAK-IZI-RAPORU.pdf
40. NOHU. (2024, 10.03.2026). Sürdürülebilir ve İklim Dostu Kampüs: Üniversitemiz Dünya Yeşil Kampüs Sıralamasında İlk 300’e Girdi. Sıfır Atık Koordinatörlüğü. Niğde Ömer Halisdemir Üniversitesi. Available: https://www.ohu.edu.tr/sifiratik/duyuru/62522
41. C. Yang, T. Yao, D. Shiming, and W. Jiang, "Carbon emissions accounting and uncertainty analysis in campus settings: A case study of a university in Sichuan, China," PLOS ONE, vol. 20, no. 4, p. e0321216, 2025.
42. N. Cano, L. Berrio, E. Carvajal, and S. Arango, "Assessing the carbon footprint of a Colombian University Campus using the UNE-ISO 14064–1 and WRI/WBCSD GHG Protocol Corporate Standard," Environmental Science and Pollution Research, vol. 30, no. 2, pp. 3980-3996, 2023/01/01 2023.
43. C. Genta, S. Favaro, G. Sonetti, G. V. Fracastoro, and P. Lombardi, "Quantitative assessment of environmental impacts at the urban scale: the ecological footprint of a university campus," Environment, Development and Sustainability, vol. 24, no. 4, pp. 5826-5845, 2022/04/01 2022.
44. F. Samara, S. Ibrahim, M. E. Yousuf, and R. Armour, "Carbon Footprint at a United Arab Emirates University: GHG Protocol," vol. 14, no. 5, p. 2522, 2022.
45. N. Gómez, M.-Á. Cadarso, and F. Monsalve, "Carbon footprint of a university in a multiregional model: the case of the University of Castilla-La Mancha," Journal of Cleaner Production, vol. 138, pp. 119-130, 2016/12/01/ 2016.
46. K. S. Sangwan, V. Bhakar, V. Arora, and P. Solanki, "Measuring Carbon Footprint of an Indian University Using Life Cycle Assessment," Procedia CIRP, vol. 69, pp. 475-480, 2018/01/01/ 2018.
47. D. Adeyeye, A. Olusola, I. R. Orimoloye, S. K. Singh, and S. Adelabu, "Carbon footprint assessment and mitigation scenarios: a benchmark model for GHG indicator in a Nigerian University," Environment, Development and Sustainability, vol. 25, no. 2, pp. 1361-1382, 2023/02/01 2023.
48. S. Alvarez, M. Blanquer, and A. Rubio, "Carbon footprint using the Compound Method based on Financial Accounts. The case of the School of Forestry Engineering, Technical University of Madrid," Journal of Cleaner Production, vol. 66, pp. 224-232, 2014/03/01/ 2014.
49. A. Vrachni, A. Christogerou, G. A. Thomopoulos, C. Marazioti, and G. N. Angelopoulos, "Carbon Footprint of the University of Patras in Greece: Evaluating Environmental Culture and Campus’ Energy Management towards 2030," vol. 2, no. 3, pp. 347-362, 2022.
50. R. Mendoza-Flores, R. Quintero-Ramírez, and I. Ortiz, "The carbon footprint of a public university campus in Mexico City," Carbon Management, vol. 10, no. 5, pp. 501-511, 2019/09/03 2019.
51. Á. García-Alaminos, E. Gilles, F. Monsalve, and J. Zafrilla, "Measuring a university's environmental performance: A standardized proposal for carbon footprint assessment," Journal of Cleaner Production, vol. 357, p. 131783, 2022/07/10/ 2022.
52. R. Battistini, F. Passarini, R. Marrollo, C. Lantieri, A. Simone, and V. Vignali, "How to Assess the Carbon Footprint of a Large University? The Case Study of University of Bologna’s Multicampus Organization," vol. 16, no. 1, p. 166, 2023.
53. G. Asadollahfardi, M. Alipour, A. Panahandeh, and M. Ardestani, "Environmental Life Cycle Assessment of University Campus in Operation Phase, a Case Study of Kharazmi University in Iran," Process Integration and Optimization for Sustainability, vol. 8, 04/16 2024.
54. P. Yañez, A. Sinha, and M. Vásquez, "Carbon Footprint Estimation in a University Campus: Evaluation and Insights," vol. 12, no. 1, p. 181, 2020.
55. M. Varón-Hoyos, J. Osorio-Tejada, and T. Morales-Pinzón, "Carbon footprint of a university campus from Colombia," Carbon Management, vol. 12, no. 1, pp. 93-107, 2021/01/21 2021.
56. V. Filimonau, D. Archer, L. Bellamy, N. Smith, and R. Wintrip, "The carbon footprint of a UK University during the COVID-19 lockdown," Science of The Total Environment, vol. 756, p. 143964, 2021/02/20/ 2021.
57. A. Abdelalim, W. O’Brien, and Z. Shi, "Visualization of energy and water consumption and GHG emissions: A case study of a Canadian University Campus," Energy and Buildings, vol. 109, pp. 334-352, 2015/12/15/ 2015.
58. YÖK. (2024, 12.02.2026). Yükseköğretim Kurulu öğrenci ve akademisyen istatistiklerini açıkladı. Yükseköğretim Kurulu. Available: https://www.yok.gov.tr/tr/news/yuksekogretim-kurulu-ogrenci-ve-akademisyen-istatistiklerini-acikladi-0h1og
59. YÖK. (2024, 12.02.2026). Yükseköğretimde uluslararasılaşma strateji belgesi 2024-2028. Yükseköğretim Kurulu. Available: https://www.yok.gov.tr/Documents/AnaSayfa/yuksekogretimde-uluslararasilasma-strateji-belgesi-2024-2028.pdf
60. İstanbul Gedik Üniversitesi, "Sürdürülebilirlik Ofisi Karbon Ayak İzi ve Sera Gazı Envanteri Raporu," 2023.
61. Yeditepe Üniversitesi, "Sera Gazı Envanter Raporu.," 2024.
62. Yıldız Teknik Üniversitesi, "Sürdürülebilir Kampüs Yönetimi ve Sera Gazı Emisyon Raporu," 2024.
63. Hacettepe Üniversitesi, "Sürdürülebilir Yerleşkeler Koordinatörlüğü, Sera Gazı Envanteri ve Sürdürülebilirlik Raporu," 2023.
64. Atatürk Üniversitesi, "Atatürk Üniversitesi Merkez Kampüs Karbon Ayak Izi Raporu" 2020.