In recent decades, the environmental impacts of aviation have become a key challenge for
the aeronautical community. Advanced and well-established technologies such as active …

The desire to produce environmentally friendly aircraft that is aerodynamically efficient and
capable of conveying large number of passengers over long ranges at reduced direct …

The European aviation sector must substantially reduce climate impacts to reach net-zero
goals. This reduction, however, must not be limited to flight CO2 emissions since such a …

Ever since the Wright brothers' first powered flight in 1903, commercial aircraft have relied
on liquid hydrocarbon fuels. However, the need for greenhouse gas emission reductions …

This expanded and revised fifth edition of The Geography of Transport Systems provides a
comprehensive and accessible introduction to the field with a broad overview of its concepts …

Currently, toxic and carcinogenic hydrazine propellants are commonly used in spacecraft
propulsion. These propellants impose distinctive environmental challenges and …

Accurate fuel burn estimation models are required to assess potential reductions in CO 2
emissions stemming from new aircraft technologies. This study provides a novel framework …

We build a duopoly model to shed light on the environmental impact of HSR-air transport
competition, capturing the effects of induced demand, schedule frequency and HSR speed …

Tourism is an increasingly significant contributor to greenhouse gas (GHG) emissions.
Emissions growth in the sector is in substantial conflict with global climate policy goals that …

With increasing demand for air transportation worldwide and decreasing marginal fuel
efficiency improvements, the contribution of aviation to climate change relative to other …