soccer events; carbon emissions; green technology innovation; digitalization level; public transportation

Al-Hamrani, A., Kim, D., Kucukvar, M., et al. (2021). Circular economy application for a Green Stadium construction towards sustainable FIFA world cup Qatar 2022™. Environmental Impact Assessment Review, 87, 106543. https://doi.org/10.1016/j.eiar.2020.106543 Beck, K. (2021). Capital mobility and the synchronization of business cycles: Evidence from the European Union. Review of International Economics, 29(4), 1065–1079. Portico. https://doi.org/10.1111/roie.12536 Belhadi, A., Venkatesh, M., Kamble, S., et al. (2024). Data-driven digital transformation for supply chain carbon neutrality: Insights from cross-sector supply chain. International Journal of Production Economics, 270, 109178. https://doi.org/10.1016/j.ijpe.2024.109178 Caiazza, R., Audretsch, D. (2015). Can a sport mega-event support hosting city’s economic, socio-cultural and political development? Tourism Management Perspectives, 14, 1–2. https://doi.org/10.1016/j.tmp.2015.01.001 Chard, C., & Mallen, C. (2013). Renewable Energy Initiatives at Canadian Sport Stadiums: A Content Analysis of Web-Site Communications. Sustainability, 5(12), 5119–5134. https://doi.org/10.3390/su5125119 Chen, A., Li, L., & Shahid, W. (2024). Digital transformation as the driving force for sustainable business performance: A moderated mediation model of market-driven business model innovation and digital leadership capabilities. Heliyon, 10(8), e29509. https://doi.org/10.1016/j.heliyon.2024.e29509 Chen, S., Ding, D., Shi, G., et al. (2022). Digital economy, industrial structure, and carbon emissions: An empirical study based on a provincial panel data set from China. Chinese Journal of Population, Resources and Environment, 20(4), 316–323. https://doi.org/10.1016/j.cjpre.2022.11.002 Cheng, S., Wang, P., Chen, B., et al. (2022). Decoupling and decomposition analysis of CO2 emissions from government spending in China. Energy, 243, 122741. https://doi.org/10.1016/j.energy.2021.122741 Collins, A., Jones, C., & Munday, M. (2009). Assessing the environmental impacts of mega sporting events: Two options? Tourism Management, 30(6), 828–837. https://doi.org/10.1016/j.tourman.2008.12.006 Cooper, J. A. (2020). Making orange green? A critical carbon footprinting of Tennessee football gameday tourism. Journal of Sport & Tourism, 24(1), 31–51. https://doi.org/10.1080/14775085.2020.1726802 Crabb, L. A. H. (2017). Debating the success of carbon-offsetting projects at sports mega-events. A case from the 2014 FIFA World Cup. Journal of Sustainable Forestry, 37(2), 178–196. https://doi.org/10.1080/10549811.2017.1364652 Derindag, O. F., Maydybura, A., Kalra, A., et al. (2023). Carbon emissions and the rising effect of trade openness and foreign direct investment: Evidence from a threshold regression model. Heliyon, 9(7), e17448. https://doi.org/10.1016/j.heliyon.2023.e17448 Dolf, M., & Teehan, P. (2015). Reducing the carbon footprint of spectator and team travel at the University of British Columbia’s varsity sports events. Sport Management Review, 18(2), 244–255. https://doi.org/10.1016/j.smr.2014.06.003 Fernández-Martínez, A., Tamayo-Fajardo, J. A., Nuviala, R., et al. (2021). The management of major sporting events as an antecedent to having the city recommended. Journal of Destination Marketing & Management, 19, 100528. https://doi.org/10.1016/j.jdmm.2020.100528 Gerke, A., Fehrer, J., Benson-Rea, M., et al. (2024). A Typology of Circular Sport Business Models: Enabling Sustainable Value Co-Creation in the Sport Industry. Journal of Sport Management, 38(4), 225–239. https://doi.org/10.1123/jsm.2023-0093 Gupta, S., & Rhyner, J. (2022). Mindful Application of Digitalization for Sustainable Development: The Digitainability Assessment Framework. Sustainability, 14(5), 3114. https://doi.org/10.3390/su14053114 Hansen, B. E. (1999). Threshold effects in non-dynamic panels: Estimation, testing, and inference. Journal of Econometrics, 93(2), 345-368. https://doi.org/10.1016/s0304-4076(99)00025-1 Herold, D. M., Breitbarth, T., Hergesell, A., et al. (2024). Sport events and the environment: Assessing the carbon footprint of spectators’ modal choices at professional football games in Austria. Journal of Cleaner Production, 452, 142259. https://doi.org/10.1016/j.jclepro.2024.142259 Hu, H., Chen, Y., & Li, W. (2023). The green economic impact of a green comprehensive industry agglomeration: An example from the sports industry. Heliyon, 9(12), e22707. https://doi.org/10.1016/j.heliyon.2023.e22707 Hu, L., Yuan, W., Jiang, J., et al. (2023). Asymmetric effects of industrial structure rationalization on carbon emissions: Evidence from thirty Chinese provinces. Journal of Cleaner Production, 428, 139347. https://doi.org/10.1016/j.jclepro.2023.139347 Ito, E., Higham, J., & Cheer, J. M. (2022). Carbon emission reduction and the Tokyo 2020 Olympics. Annals of Tourism Research Empirical Insights, 3(2), 100056. https://doi.org/10.1016/j.annale.2022.100056 Jia, L., Hu, X., Zhao, Z., et al. (2022). The Impact of Digitization on Green Innovation Performance: Evidence Based on Panel Data of 228 Prefectural‐Level Cities in China. Complexity, 2022(1). Portico. https://doi.org/10.1155/2022/9442902 Jie, G., & Jiahui, L. (2023). Media attention, green technology innovation and industrial enterprises’ sustainable development: The moderating effect of environmental regulation. Economic Analysis and Policy, 79, 873–889. https://doi.org/10.1016/j.eap.2023.07.003 Katsaprakakis, D. Al., Papadakis, N., Giannopoulou, E., et al. (2023). Rational Use of Energy in Sport Centers to Achieving Net Zero—The SAVE Project (Part B: Indoor Sports Hall). Energies, 16(21), 7308. https://doi.org/10.3390/en16217308 Li, G., Lai, S., Lu, M., et al. (2023). Digitalization, Carbon Productivity and Technological Innovation in Manufacturing—Evidence from China. Sustainability, 15(14), 11014. https://doi.org/10.3390/su151411014 Li, J., Jiang, M., & Li, G. (2024). Does the new energy vehicles subsidy policy decrease the carbon emissions of the urban transport industry? Evidence from Chinese cities in Yangtze River Delta. Energy, 298, 131322. https://doi.org/10.1016/j.energy.2024.131322 Lin, B., & Huang, C. (2023). Nonlinear relationship between digitization and energy efficiency: Evidence from transnational panel data. Energy, 276, 127601. https://doi.org/10.1016/j.energy.2023.127601 Liu, H., Wang, X., Wang, Z., et al. (2024). Does digitalization mitigate regional inequalities? Evidence from China. Geography and Sustainability, 5(1), 52–63. https://doi.org/10.1016/j.geosus.2023.09.007 Liu, K. P., & Chiu, W. (2021). Supply Chain 4.0: the impact of supply chain digitalization and integration on firm performance. Asian Journal of Business Ethics, 10(2), 371–389. https://doi.org/10.1007/s13520-021-00137-8 Liu, Z., & Guo, D. (2023). Assessing the carbon footprint of soccer events through a lightweight CNN model utilizing transfer learning in the pursuit of carbon neutrality. Frontiers in Ecology and Evolution, 11. https://doi.org/10.3389/fevo.2023.1208643 Lutfi, A., Alqudah, H., Alrawad, M., et al. (2023). Green Environmental Management System to Support Environmental Performance: What Factors Influence SMEs to Adopt Green Innovations? Sustainability, 15(13), 10645. https://doi.org/10.3390/su151310645 Manni, M., Coccia, V., Nicolini, A., et al. (2018). Towards Zero Energy Stadiums: The Case Study of the Dacia Arena in Udine, Italy. Energies, 11(9), 2396. https://doi.org/10.3390/en11092396 McCullough, B. P., Pfahl, M. E., & Nguyen, S. N. (2015). The green waves of environmental sustainability in sport. Sport in Society, 19(7), 1040–1065. https://doi.org/10.1080/17430437.2015.1096251 Ning, J., Yin, Q., & Yan, A. (2022). How does the digital economy promote green technology innovation by manufacturing enterprises? Evidence from China. Frontiers in Environmental Science, 10. https://doi.org/10.3389/fenvs.2022.967588 Ran, Z., Gao, S., Zhang, B., et al. (2023). Non-linear effects of multi-dimensional urbanization on ecosystem services in mega-urban agglomerations and its threshold identification. Ecological Indicators, 154, 110846. https://doi.org/10.1016/j.ecolind.2023.110846 Ren, X., Zhao, M., Yuan, R., et al. (2023). Influence mechanism of financial development on carbon emissions from multiple perspectives. Sustainable Production and Consumption, 39, 357–372. https://doi.org/10.1016/j.spc.2023.05.009 Shahbaz, M., Shahzad, S. J. H., Ahmad, N., et al. (2016). Financial development and environmental quality: The way forward. Energy Policy, 98, 353–364. https://doi.org/10.1016/j.enpol.2016.09.002 Tan, X., Abbas, J., Al-Sulaiti, K., et al. (2024). The Role of Digital Management and Smart Technologies for Sports Education in a Dynamic Environment: Employment, Green Growth, and Tourism. Journal of Urban Technology, 1–32. https://doi.org/10.1080/10630732.2024.2327269 Tao, M., Sheng, M. S., & Wen, L. (2023). How does financial development influence carbon emission intensity in the OECD countries: Some insights from the information and communication technology perspective. Journal of Environmental Management, 335, 117553. https://doi.org/10.1016/j.jenvman.2023.117553 Triantafyllidis, S. (2018). Carbon Dioxide Emissions Research and Sustainable Transportation in the Sports Industry. C, 4(4), 57. https://doi.org/10.3390/c4040057 Triantafyllidis, S., Ries, R., & Kaplanidou, K. (2018). Carbon Dioxide Emissions of Spectators’ Transportation in Collegiate Sporting Events: Comparing On-Campus and Off-Campus Stadium Locations. Sustainability, 10(1), 241. https://doi.org/10.3390/su10010241 Valero-Gil, J., Suárez-Perales, I., Garcés-Ayerbe, C., et al. (2024). Navigating toward the promised land of digitalization and sustainability convergence. Technological Forecasting and Social Change, 202, 123283. https://doi.org/10.1016/j.techfore.2024.123283 Wang, X. (2020). Research on environmental green development technology by sustainable utilisation of green sports buildings. International Journal of Environmental Technology and Management, 23(2/3/4), 162. https://doi.org/10.1504/ijetm.2020.112961 Wang, Y., Wang, Y., & Li, M.-X. (2019). Regional characteristics of sports industry profitability: Evidence from China’s province level data. Physica A: Statistical Mechanics and Its Applications, 525, 946–955. https://doi.org/10.1016/j.physa.2019.03.066 Wicker, P. (2019). The carbon footprint of active sport participants. Sport Management Review, 22(4), 513–526. https://doi.org/10.1016/j.smr.2018.07.001 Xiang, Y., Cui, H., & Bi, Y. (2023). The impact and channel effects of banking competition and government intervention on carbon emissions: Evidence from China. Energy Policy, 175, 113476. https://doi.org/10.1016/j.enpol.2023.113476 Xu, W., & Liu, S. (2024). Novel economic models for advancing urban energy management and transition: Simulation of urban energy system in digital twin. Sustainable Cities and Society, 101, 105154. https://doi.org/10.1016/j.scs.2023.105154 Yao, S., & Zhang, S. (2021). Energy mix, financial development, and carbon emissions in China: a directed technical change perspective. Environmental Science and Pollution Research, 28(44), 62959–62974. https://doi.org/10.1007/s11356-021-15186-6 Zhang, C., Zhou, X., Zhou, B., et al. (2022). Impacts of a mega sporting event on local carbon emissions: A case of the 2014 Nanjing Youth Olympics. China Economic Review, 73, 101782. https://doi.org/10.1016/j.chieco.2022.101782 Zhou, C., Wang, S., & Wang, J. (2019). Examining the influences of urbanization on carbon dioxide emissions in the Yangtze River Delta, China: Kuznets curve relationship. Science of The Total Environment, 675, 472–482. https://doi.org/10.1016/j.scitotenv.2019.04.269 Zhou, L., Ke, Z., & Waqas, M. (2023). Beyond the Arena: How sports economics is advancing China’s sustainable development goals. Heliyon, 9(7), e18074. https://doi.org/10.1016/j.heliyon.2023.e18074