Reinvigorating the discipline:pervasive computing and tomorrow's computer scientists

Declining enrollments in computer science and related fields are a global concern. This issue's column, by Mike Hazas and Rebecca Marsden of Lancaster University in the UK describes the novel Lancaster Headstart program that uses the excitement of pervasive computing to attract students into the computer science

Exploring sustainability research in computing:where we are and where we go next

This paper develops a holistic framework of questions mo- tivating sustainability research in computing in order to en- able new opportunities for critique. Analysis of systemat- ically selected corpora of computing publications demon- strates that several of these question areas are well covered, while others are ripe for further exploration. It also pro- vides insight into which of these questions tend to be ad- dressed by different communities within sustainable com- puting. The framework itself reveals discursive similarities between other existing environmental discourses, enabling reflection and participation with the broader sustainability debate. It is argued that the current computing discourse on sustainability is reformist and premised in a Triple Bottom Line construction of sustainability, and a radical, Quadruple Bottom Line alternative is explored as a new vista for com- puting research

It's Just the Internet! Appropriation in Postinternet Art

This paper examines the use of appropriation in contemporary internet art - postinternet art - in terms of internet technology and web content. The paper suggests that postinternet art reflects our cultural reality through the ubiquity and fluidity of internet services. This results to novel artistic practices that draw on the cultural connections made online by appropriating found web content and internet technology. The paper presents a study of 190 artworks from the ArtBase Rhizome’s digital archive between 2010-2015 to provide evidence on how and to what extent postinternet art appropriates the internet

Are there limits to growth in data traffic?:on time use, data generation and speed

This discussion paper considers the nature of growth in data traffic across the Internet, as a basis for asking whether and how such growth might slow down or otherwise be limited. Over the last decade, data growth has been dramatic, and forecasts predict a similar ongoing pattern. Since this is associated with increasing electricity consumption, such a trend is significant to global efforts to reduce carbon emis- sions. In this paper, we selectively explore aspects of data growth that are linked to everyday practices and the way they draw upon and generate Internet data. We suggest that such growth does have some conceivable limits. However, the nature of ‘Internet use’ is changing and forms of growth are emerging that are more disconnected from human ac- tivity and time-use. This suggests that although there may well be limits, in principle, to some forms of growth, total data traffic seems likely to continue growing. This calls for careful attention to the nature of the trends involved, as a basis for intentionally building limits into this system be- fore levels of Internet electricity demand becomes directly and more explicitly problematic

Planning for the things you can’t plan for:lessons learnt from deployments in the home

In this article, we reflect on lessons learned through our own experience of conducting more than 20 technology deployments in participants' homes within the past two years. We shed light on challenges that we have encountered, offering solutions where applicable to enable researchers who are planning to deploy technology in participants' homes.

Digitalisation, energy and data demand:The impact of Internet traffic on overall and peak electricity consumption

Over the last decade, concerns have been raised about increases in the electricity used by information technologies, other consumer electronic devices, data centres, and to a much lesser degree, Internet distribution networks. At the same time, ‘smart’ innovations are widely anticipated to help reduce energy demand across diverse sectors of society. Yet such potential savings, as well as the increasing use of other digital services, are predicated upon continued expansion of digital infrastructures. This paper focuses on the phenomenal growth in Internet traffic, as a trend with important implications for energy demand. It outlines an agenda to better understand how data demand is changing. Drawing on findings from our own research in combination with secondary data analysis, we examine the alignment of peak demand for electricity and data. Peaks in data appear to fall later in the evening, reflecting the use of online entertainment, but this is far from fixed. Overall, the paper argues that a better understanding of how everyday practices are shifting, in concert with the provision and design of online services, could provide a basis for the policies and initiatives needed to mitigate the most problematic projections of Internet energy use

‘Doing good science’:The impact of invisible energy policies on laboratory energy demand in higher education

Education is the second largest consumer of energy in the service sector, however, little research to date has focused on the link between education policy and energy demand. Using a case study, this paper explores the role of invisible energy policies in Higher Education (HE). We make a distinctive contribution to debates about invisible energy policy by applying concepts from governmentality to show how different policies and technologies of governance come in to conflict in practice. And, we argue that although there are a number of institutional and national-level policies directly related to sustainability (including energy) there are also a number of conflicting priorities, most notably linked to the neoliberalisation of HE. Our case study focuses on teaching and research laboratories and empirically explores the impacts of both intentional and non-intentional energy policy in these spaces. Specifically this research highlights that the ability to ‘do good science’ has implications for demand management that go beyond research and teaching laboratory activities, and into the wider realm of HE institutions and policies

Streaming, Multi-Screens and YouTube:The New (Unsustainable) Ways of Watching in the Home

Internet use and online services underpin everyday life, and the resultant energy demand is almost entirely hidden, yet significant and growing: it is anticipated to reach 21% of global electricity demand by 2030 and to eclipse half the greenhouse gas emissions of transportation by 2040. Driving this growth, real-time video streaming (‘watching’) is estimated at around 50% of all peak data traffic. Using a mixed-methods analysis of the use of 66 devices (e.g. smart TVs, tablets) across 20 participants in 9 households, we reveal the online activity of domestic watching and provide a detailed exploration of video-on-demand activities. We identify new ways in which watching is transitioning in more rather than less data demanding directions; and explore the role HCI may play in reducing this growing data demand. We further highlight implications for key HCI and societal stakeholders (policy makers, service providers, network engineers) to tackle this important issue