The United States Department of Sustainability does not exist yet, but culminating efforts of cities and states imply that its emergence could bolster their effects. This notion suggests that, while the movement to balance environmental, social, and economic interests has momentum, it remains at a significant disadvantage without a meaningful federal response. The ill effects of climate change will continue to advance, challenging the conditions for living in our accustomed manners. While practical considerations should motivate the needed mitigatory endeavors, moral demands support this view. The purpose of this article is to flesh out these ideas, revealing the origins of this extension of the executive branch, its purpose, and its moral dimensions.