Cities, Long-Distance Travel, and Climate Impacts

This thematic issue focuses on important but understudied connections between cities and climate impacts of long-distance travel. While urbanization and urban density have climate change mitigation potential in short-distance travel (e.g., by reducing car use and supporting public transportation, walking, and cycling), they have been associated with a higher level of emissions from flights. This highlights the role that city-regions could potentially play in reducing climate impacts of aviation. At the same time, the development of airports and flight connections has been an important driver of economic growth at regional scale and a factor contributing to global competitiveness of city-regions. This thematic issue includes seven interesting articles focusing on different aspects of the theme, all of which are briefly presented in this editorial. We also lay down some suggestions for future research directions based on the findings presented in this thematic issue