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Examining the Carbon Footprint of Conferences with an Emphasis on Energy Consumption and Catering

Author

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  • Viktoria Mannheim

    (Department of Engineering Management and Enterprise, Faculty of Engineering, University of Debrecen, H-4028 Debrecen, Hungary)

  • Judit Lovasné Avató

    (Department of Methodology for Business Analysis, Institute of Quantitative Methodology, Budapest Business University, Alkotmány Str. 9-11, 1054 Budapest, Hungary)

Abstract

This research study presents a comparison of an in-person and an online conference in terms of environmental impact and energy efficiency. The main goal of our research was to prepare a complete life cycle assessment of a two-day (15-h), 200-participant in-person and online conference based on different impact assessment methods. Life cycle assessments focus on the numerical determination of the decarbonization of conference consumption (lunch, dinner, food and beverage consumption during breaks), conference organization (discussions, correspondence, abstract booklet, registration package), travel, and infrastructure. The meals were examined by connecting the stages of preparation, cooking, consumption and end-of-life cycle as a cradle-to-grave analysis. We paid particular attention to the calculation of energy consumption. After carbon footprint comparisons, the areas with the highest impacts with pie diagrams were identified. Lastly, a SWOT chart and an SAP-LAP analysis diagram summarize the achievable objectives and challenges. In conclusion, there is no outstanding difference between the impact assessment methods for the carbon footprint investigation. Travel contributes 57% of the overall carbon footprint at in-person conferences, while the environmental impact of meals holds the second largest share, at 8.41 kg CO 2 equivalent/person/hour. Excluding meals and travel, the calculated carbon footprint is 0.362 kg CO 2 equivalent/person/hour (only considering the effect of preparation, organization, administration and registration package). Our initial hypothesis was that an online conference reduces decarbonization, which the results confirm.

Suggested Citation

  • Viktoria Mannheim & Judit Lovasné Avató, 2025. "Examining the Carbon Footprint of Conferences with an Emphasis on Energy Consumption and Catering," Energies, MDPI, vol. 18(2), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:2:p:321-:d:1565777
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    1. Viktoria Mannheim & Zsuzsa Szalay & Renáta Bodnárné Sándor & Anita Terjék & Judit Lovasné Avató & Péter Sasvári & Zsolt István & Artúr Szilágyi & Orsolya Szalainé Kaczkó & Klára Tóthné Szita, 2025. "Energy Efficiency and Decarbonization Resulting from the Transition to Virtual Space," Energies, MDPI, vol. 18(5), pages 1-22, February.

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