In this paper we evaluate how irreversible social change should be evaluated from an ethical perspective. First; we analyse the notion of irreversibility in general terms. We define a general notion of what makes a change irreversible; drawing on discussions in ecology and economics. This notion is relational in the sense; that it claims that a change can only be irreversible for a certain party. Second; we examine ways to evaluate irreversible changes; drawing on discussions from both ethics; particularly the Capability Approach; and economics; particularly Cost-Benefit Analysis and the Safe Minimum Standard. Insights from the field of development studies are also woven into the discussion. Third; we investigate why (adverse) social changes tend to be systematically undervalued in decision making by private actors and policy makers; and argue for applying the Safe Minimum Standard as a decision rule for dealing with irreversible social changes. Finally; we show how our framework can be applied by evaluating the land acquisition process of biofuel producers in Tanzania
