This dissertation contributes to social and behavioral science perspectives that push forward vital energy transitions in the face of climate change. In its three analytical chapters, this dissertation achieves three central objectives: 1) accumulates findings on household behavior at the food-energy-water nexus across disciplines, 2) identifies social behavioral drivers of household green technology purchase, and 3) expands the focus of consumption research beyond the individual to consider

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... household social dynamics shape food, energy, and water use in the home.Systematically reviewing published FEW intervention literature, Chapter 2 proposes a typology that characterizes household food, energy, and water conservation interventions as active, passive, or structural, and household-specific or non-specific, illustrating six distinct categories: information, tailored information, action, gamification, policy/price change, and material/technological provision. The review reveals four lessons for future intervention research: household non-specific information and tailored information appear to be more effective when used together, the impacts of feedback are reinforced when contact with participants is persistent, price-based interventions are often ineffective, and material/technology provision has proven very effective in a limited number of studies.Chapter 3 explores social and psychological determinants of green purchasing behavior in the US and Canada, motivated by the importance of efficient technology adoption to reach national emissions goals. This analysis establishes a causal chain from values to environmental concern to green lifestyle orientation, or the perception of importance of environmental action to one's overall lifestyle, which predicts green purchase intentions for lightbulbs, appliances, and vehicles. Income also impacts purchase intentions in both US and Canadian samples, illustrating the pervasiveness of consumer lock-in that has potential to significantly slow green technology adoption. [...]