Effective adaptation assumes a feedback between the experience or anticipation of harm, and the actions of those individuals whose decisions and actions are necessary to reduce that harm. In urban areas, citizens often expect support from the public sector to facilitate their adaptation efforts and to protect them from exposure. This expectation—grounded in notions of the social contract between citizens and the state—presumes efficient feedback between public sector actors and residents concerning vulnerable states and adaptation needs. Through a case study of Mexico City, we analyze the role of social mobilization, specifically, neighborhood protests associated with water scarcity, as an informal means for a vulnerable population to communicate its needs to those actors with the mandate and capacity to alter risk exposure. On the basis of the findings from the case study, we propose a simple framework to begin a more systematic process of analyzing the expression of grievances as a feedback among actors involved in urban adaptation. We argue that by making visible these expressions as an informal mechanism of feedback between risk exposure, impact, decision-making, and the biophysical environment, we can reveal a potentially important lever on system change: one that highlights existing asymmetries in power, equity, and rights in urban adaptation.