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Estimating the global warming emissions of the LCAXVII conference: connecting flights matter

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Conferences are an important element of scientific activity but can also be a major cause of environmental burden. With this in mind, we analysed the global warming emissions of the 2017 annual conference of the American Center for Life Cycle Assessment (ACLCA), in order to estimate the carbon footprint and identify potential ways to reduce it.


We used survey data from participants as well as literature sources to complete an attributional assessment of the greenhouse gas emissions per participant. A method to calculate the ‘ideal’ location is proposed, which can be used to identify ‘unreasonably’ distant conference locations.

Results and discussion

The average emissions per participant were found to be 952 kg CO2eq, but with a large variability due to differences in travelled distance. Connecting flights were found to increase emissions up to 32% compared to direct flights, due to the increased number of take-offs and landings.


Results indicate that future studies should use distance-dependent flight emissions to increase the accuracy of the assessment. Some measures, such as meat-free menus, had a relatively minor contribution to emission reductions, but could be important as scientists advocating for the reduction of environmental burden should lead by example.

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  • Blanco G, Gerlagh S, Suh S, Barrett J, de Coninck HC, Diaz Morejon CF, Mathur R, Nkicenovic N, Ofosu Ahenkora A, Pan J, Pathak H, Rice J, Richels R, Smith SJ, Stern DI, Toth FL, Zhou P (2014) Climate change 2014: mitigation of climate change: contribution of working group III to the fifth assessment report of the intergovernmental panel on climate change. In: Edenhofer O, Pichs-Madruga R, Sokona Y, Farahani E, Kadner K, Seyboth A, Adler A, Baum I, Brunner S, Eickemeier P, Kriemann B, Savolainen J, Schomer S, Von Stechov C, Zwikel T, Minx JC (eds) Cambridge University Press, Cambridge

  • Bossdorf O, Parepa M, Fischer M (2010) Climate-neutral ecology conferences: just do it! Trends Ecol Evol 25:61

    Article  Google Scholar 

  • Cox B, Jemiolo W, Mutel C (2018) Life cycle assessment of air transportation and the Swiss commercial air transport fleet. Transp Res Part D Transp Environ 58:1–13

    Article  Google Scholar 

  • De Grosbois D, and Fennell D (2011) Carbon Footprint of the Global Hotel Companies: Comparison of Methodologies and Results. Tour Recreat Res 36(3):231–245

  • EPA (2017) Green meetings. Accessed 22 Apr 2018

  • Favaro B (2014) A carbon code of conduct for science. Science 344:1461–1461

    Article  CAS  Google Scholar 

  • Geopy (2015) GeoPy. (accessed 10th December 2017)

  • Goedkoop M, Heijungs R, Huijbregts M, et al (2009) ReCiPe 2008. Accessed 22 Dec 2017

  • Goldstein B, Hansen SF, Gjerris M, Laurent A, Birkved M (2016) Ethical aspects of life cycle assessments of diets. Food Policy 59:139–151

    Article  Google Scholar 

  • Google Maps (2017) Distance and duration for multiple destinations and transport modes. (accessed 10th December 2017)

  • Hager TJ, and Morawicki R (2013) Energy consumption during cooking in the residential sector of developed nations: A review. Food Policy 40:54–63

  • Hischier R, Hilty L (2002) Environmental impacts of an international conference. Environ Impact Assess Rev 22:543–557

    Article  Google Scholar 

  • Kahan D, Peters E, Wittlin M et al (2012) The polarizing impact of science literacy and numeracy on perceived climate change risks. Nat Clim Chang 2:732–735

    Article  Google Scholar 

  • Kalbar PP, Birkved M, Karmakar S, Nygaard SE, Hauschild M (2017) Can carbon footprint serve as proxy of the environmental burden from urban consumption patterns? Ecol Indic 74:109–118

    Article  CAS  Google Scholar 

  • Reynolds TG (2014) Air traffic management performance assessment using flight inefficiency metrics. Transp Policy 34:63–74

    Article  Google Scholar 

  • Spinellis D, Louridas P (2013) The carbon footprint of conference papers. PLoS One 8:6–13

    Article  CAS  Google Scholar 

  • Stroud JT, Feeley KJ (2015) Responsible academia: optimizing conference locations to minimize greenhouse gas emissions. Ecography (Cop) 38:402–404

    Article  Google Scholar 

  • Tsai K-T, Lin T-P, Hwang R-L, and Huang Y-J (2014) Carbon dioxide emissions generated by energy consumption of hotels and homestay facilities in Taiwan. Tour Manage 42:13–21

  • Vardi Y, Zhang C-H (2000) The multivariate L1-median and associated data depth. Proc Natl Acad Sci U S A 97:1423–1426

    Article  CAS  Google Scholar 

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The authors thank the ACLCA board, Debbie Steckel and Prof. Ben Amor for giving us the opportunity to participate in the conference and conduct the survey. The authors also thank Joris Deschamps, Marianne Pedinotti-Castelle and Mohammad Davoud Heidari for their participation in an earlier version of the footprinting of the conference. Finally, we thank Brian Cox and co-authors for providing an early version of their results.

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Correspondence to Miguel F. Astudillo.

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Responsible editor: Mary Ann Curran

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Astudillo, M.F., AzariJafari, H. Estimating the global warming emissions of the LCAXVII conference: connecting flights matter. Int J Life Cycle Assess 23, 1512–1516 (2018).

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