1. UNEP, “Transport.” Accessed: Jan. 03, 2022. [Online]. Available: https://www.unep.org/explore-topics/energy/what-we-do/transport.
2. European Environment Agency, “Indicator Assessment - Greenhouse gas emissions from transport in Europe,” 2020. Accessed: Jan. 03, 2022. [Online]. Available: https://www.eea.europa.eu/data-and-maps/indicators/transport-emissions-of-greenhouse-gases/transport-emissions-of-greenhouse-gases-12.
3. European Environment Agency, “Greenhouse gas emissions from transport in Europe,” 2021. Accessed: Jan. 03, 2022. [Online]. Available: https://www.eea.europa.eu/ims/greenhouse-gas-emissions-from-transport.
4. European Commission, “European Green Deal: Commission proposes transformation of EU economy and society to meet climate ambitions,” Brussels, Jul. 14, 2021. [Online]. Available: https://ec.europa.eu/commission/presscorner/detail/en/IP_21_3541.
5. Comparison between hydrogen and electric vehicles by life cycle assessment: a case study in Tuscany, Italy;Bartolozzi;Appl Energy,2013