Contrail formation is one the largest warming contributions of aviation’s climate impact. Measures to mitigate contrail climate impact include the optimisation of flight trajectories to avoid the formation of warming contrails or to find air space where extra cooling contrails are formed. The latter option is only possible during daytime, due to th...
Aviation activity results in around 5% of global climate impact, for which both the sources and the manner to improve through technology, operations, and policy need to be better understood. Therefore, a Scenario-based assessment through AirClim is done, assessing future efforts and their support for the Paris Agreement goals. The baseline showed 3...
To achieve the climate and environmental goals the Swedish government took actions to increase timber construction. One material that have been getting more and more popularity the past years is Cross-laminated timber. This is a study that investigates the implementation phase of the CLT framework. The study is also demarcated to knowledge types an...
This paper studies the climate impact of propeller aircraft which are optimized for either minimum direct operating costs, minimum fuel mass, or minimum average temperature response (ATR100). The latter parameter provides a measure of the global warming impact of the aircraft design, considering both CO2 and non-CO2 effects. We study turboprop-powe...
The global warming that we are on track for will result in a severe loss of natural capital leading to significant losses in economic capital when urban infrastructure is destroyed, agricultural productivity declines and poverty spread among other disasters. Climate change due to emissions does not only affect the polluter, the hazardous effects be...
Sustainable aviation fuel (SAF) and liquid hydrogen are currently being studied to replace kerosene in commercial aviation to reduce global warming. In this study, the question is how do the airplane design variables change when minimizing the global warming impact of aircraft powered by SAF or LH2? Secondly, how do these aircraft compare in terms ...
This paper presents a method to assess the key performance indicators of aircraft designed for minimum direct operating costs and aircraft designed for minimum global warming impact. The method comprises a multidisciplinary aircraft optimization algorithm capable of changing wing, engine, and mission design variables while including constraints on ...
Excessive nitrogen deposition from anthropogenic emissions has a global impact on natural biodiversity. While aviation emissions have been studied in the context of climate change and air quality, this is not true for nitrogen deposition. Meanwhile the growth of the aviation industry is likely to increase the relative contribution of aviation emiss...
Purpose: The report aims to contribute to sustainable social development. The survey aims to find out what municipalities 'work for sustainable construction looks like today and propose measures that can increase municipalities' construction of wood as a building material in the short term. The carbon dioxide neutrality of the wood justifies the in...
Idag förbrukas jordens resurser i högre takt än vad jorden klarar av att bearbeta. Byggbranschen tillhör en av de sektorer som har högst klimatpåverkan, främst i form av koldioxidutsläpp. Därför pågår ett kontinuerligt arbete med att ta fram byggnadsmaterial som skall minska belastningen på miljön. I byggbranschen kan man se en trend att korslimma...
