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In this chapter, we posit that academics need to reduce their flying in line with the ‘Carbon Law’ if we are to attain the agreed-upon targets of the Paris agreement. This entails reducing emissions in general as well as reducing emissions from flying by at least 50 per cent every decade from 2020 and on. We present data from KTH Royal Institute of Technology regarding our flying and use two specific departments as examples. We unpack this data, using material visualisations (i.e. post-it notes and poker chips) to raise questions that are not immediately apparent when looking at top-down statistics about flying. Our material visualisations instead present data about flying patterns and habits in a format that viscerally displays the differences (‘inequalities’) that exist between and within departments. Such visualisations emphasise that reducing the frequency and the length of air trips will inevitably lead to discussions and negotiations about who gets to fly (or not), as well as discussions about exactly what constitutes ‘unnecessary’ flights. The chapter ends with a reflection about the limitations of our language and how the task of reducing carbon emission from flying necessitates a reinvention of how we think and talk about flying.

With global greenhouse gas (GHG) emissions ever increasing, we are currently seeing a renewed interest in carbon footprint calculators (or carbon calculators for short). While carbon calculators have traditionally calculated emissions based on user input about e.g., food, heating, and traveling, a new development in this area is the use of transaction data to also estimate emissions based on consumption. Such carbon calculators should be able to provide users with more accurate estimations, easier input possibilities, and an incentive to continue using them. In this paper, we present the results from a survey sent to the users of such a novel carbon calculator, called Svalna. Svalna offers users the possibility to connect their bank account. The transaction data are then coupled with Environmental Extended Multi Regional Input Output data (EE-MRIO) for Swedish conditions which are used to determine a continuous overview of the user’s greenhouse gas emissions from consumption. The aim of the survey was to (a) understand whether people are willing to connect their bank account, (b) whether they trust the calculations of their emissions, and (c) whether they think the use of Svalna has an effect on their behaviour. Furthermore, we wanted to know how Svalna could be improved. While the results of the survey showed that many users were willing to connect their bank account, a rather large part of the users perceived safety risks in doing so. The users also showed an only average level of trust in the correctness of the estimated greenhouse gas emissions. A lack of trust was attributed to experiencing technical problems but also to not knowing how the emissions were calculated and because the calculator could not capture all details of the user’s life. However, many users still indicated that the use of Svalna had helped them to initiate action to reduce their emissions. In order to improve Svalna, the users wanted to be able to provide more details, e.g., by scanning receipts and get better options for dealing with a shared economy. We conclude this paper by discussing some opportunities and challenges for the use of transaction data in carbon footprint calculators.

CO2 emissions from aviation have been predicted to increase over the coming decades. Within the academic world, flying is often perceived to be a necessary prerequisite to being a successful researcher. Many Swedish universities have ambitious climate goals, but are simultaneously among the top emitters in the public sector. Reaching stated climate goals could feasibly be met through a combination of measures, including decreased flying. One way to address the challenge is to support behavioural interventions with the help of interactive visualizations of CO2 emissions from flying. Those few examples that exist in the research literature are generally directed towards management and are less applicable to universities, given the large autonomy researchers enjoy and their discretionary control of research project funds. This paper uses a design-oriented research approach to present an analysis of the problem space at the intersection of interactive visualizations using air travel data to reduce CO2 emissions from business air travel at our own university, KTH Royal Institute of Technology. Through a number of design experiments, evaluations and investigations, we have unearthed needs, challenges and opportunities for the creation of visualization tools to support more sustainable travel practices at universities and in other knowledge-intensive organisations.

Existing IT systems are enabling company activities that are unsustainable and damaging to the environment. ‘When should we as IT professionals stop maintaining them?’ ask Ian Brooks MBCS, Minna Laurell Thorslund, Aksel Biørn-Hansen and Elena Somova.