How (Not) To Defend A Rawlsian Approach To Intergenerational Ethics

John Rawls’ account of our obligations towards future generations has received considerable criticism in the environmental ethics literature relative to the scant few passages in which he discusses the issue. I argue that much of this criticism is warranted because Rawls’ Heads of Family strategy for grounding obligations to future generations is not only independently problematic, but also inconsistent with his general framework. Furthermore, the oft-suggested Time Travel strategy will not work either, and for just those reasons which Rawls gave. However, I contend that the less often discussed “Universalizability Principle,” which Rawls discusses most prominently in Political Liberalism, is a plausible account of our obligations to future generations and is consistent with Rawls’ general framework. I then defend this Rawlsian account of our future-oriented obligations against objections in the environmental ethics literature such as those recently advanced by the consequentialist Tim Mulgan.