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The greatest contributor of CO2 emissions in the average American household is personal transportation. Because transportation is inherently a mobile activity, mobile devices are well suited to sense and provide feedback about these activities. In this paper, we explore the use of personal ambient displays on mobile phones to give users feedback about(More)
An increasing number of researchers are using social engagement techniques such as neighborhood comparison and competition to encourage energy conservation, yet community reception and experience with such systems have not been well studied. We also find that researchers have not thoroughly investigated how different households use these systems and how(More)
Personal energy consumption, specifically home energy consumption such as heating, cooling, and electricity, has been an important environmental and economic topic for decades. Despite the attention paid to this area, few researchers have specifically explored these issues within a community that makes up approximately 30% of U.S. households -- those below(More)
Decades of research have explored factors that can influence green behavior. However, much less is known about how technology in general, and social technologies in particular can motivate people to participate in green activities. In this paper we describe the goals, design and evaluation of StepGreen.org, a site intended to promote energy-saving(More)
Energy use in the home is a topic of increasing interest and concern, and one on which technology can have a significant impact. However, existing work typically focuses on moderately affluent homeowners who have relative autonomy with respect to their home, or does not address socio-economic status, class, and other related issues. For the 30% of the U.S.(More)
Economically distressed individuals-those living at or below the poverty line-and individuals with limited education were hit hardest by the recent economic recession in the U.S. Past research finds that these populations often lack the social capital, or connections, needed to achieve economic mobility and face specific barriers such as community distrust(More)
Rapid depletion of fossil fuels and water resources has become an international problem. Urban residential households are among the primary consumers of resources and are deeply affected by resource shortages. Despite the global nature of these problems, most of the solutions being developed to address these issues are based on studies done in the developed(More)