This paper studies emissions from household energy use, which account for one third of U.S. emissions. We draw on a new survey to document that some households purchase energy-saving equipment because, in addition to cutting energy costs, they want to reduce emissions. We build a macro-environmental model in which emissions result from home production tasks involving either clean or dirty equipment, and some households have distaste for their own emissions. We analyze the most cost-effective subsidy on clean equipment. We show that changes in households' emissions distaste have similar effects on household emissions as a modest sized carbon tax.