Science, which inevitably underlies environmental disputes, poses significant challenges for the scientifically untrained judges who decide such cases. In addition to disrupting ordinary fact-finding and causal inquiry, science can impact the framing of disputes and the standard of review. Judges must therefore adopt various tools to adjust the level of science allowed to enter their deliberations, which may fundamentally impact the legitimacy of their reasoning. While neglecting or replacing scientific authority can erode the convincing nature of judicial reasoning, the same authority, when...