Short-term emission reductions in leisure and business air travel: assessment of taxation, regulations, sustainable aviation fuels and personal intentions
基于奥地利数据，比较了税收、旅行限制、可持续燃料及个人意愿等短期减排措施的效果，发现休闲需求增长抵消了减排努力，而商务旅行可通过征税和限制进一步减少。
This study explores strategies for mitigating CO2-eq emissions in Austrian passenger air travel by performing a comparative scenario analysis of various reduction measures based on primary and secondary Austrian data. Short-term reduction potentials are assessed, encompassing (i) demand-driven responses to economic measures such as frequent flyer levies and fuel/ticket taxes, (ii) travel restrictions to selected destinations, and (iii) emission reductions achieved by adopting sustainable low-carbon fuels and new aircraft technologies. Additionally, shifts in demand driven by individuals’ travel intentions unrelated to policy interventions are considered based on two primary data sets from 2022. Focusing on Austria, this study showcases trends in travel activities and corresponding flight emissions over the past decade, referencing secondary residence travel data from 2012 to 2022. Scenarios for emission pathways are relative to business-as-usual travel activities until 2030, excluding the years impacted by COVID-19. Our results indicate that the expected short-term increase in leisure demand exceeds distinct reduction efforts, whether from demand-driven measures or optimistic sustainable aviation fuel quotas. Business travel, which is currently declining, can be further reduced by introducing frequent flyer levies and stringent travel restrictions.