One of the obstacles to dealing with the social and ecological crises that obstruct the achievement of a culture of peace is silo thinking in global governance. A unidimensional mode of planning, silo thinking leads to decisions based on the area of expertise of a particular agency or intergovernmental organization and fails to recognize linkages between social, economic, and environmental factors. To promote a comprehensive way of thinking, this article proposes the notion of "sustainable communities" (SC) as a lens for envisioning and planning for a culture of peace that integrates these linkages concretely at the community level. To provide the conceptual background for the SC lens, a literature review of the manifestations of the sustainability revolution that have emerged in the last four decades will be provided. A description of the constituent characteristics of the SC lens and a discussion of its educational utility for peace educators will follow, concluding with some reflections on the way forward.