The environmental assessment literature has neglected the distorting effect of cognitive and unconscious motivational biases (CUMB) in environmental assessment processes. This is problematic because CUMB are present in most, if not all, decision-making situations and can significantly distort decision-making processes. This article assesses how debiasing techniques are, or should be, incorporated in (supra)national environmental assessment legislation. The Dutch case study undertaken for this article shows that EU and Dutch legislation do not sufficiently incorporate debiasing techniques to ensure sound environmental decision making. Furthermore, the extent to which Dutch legislation incorporates debiasing techniques was found to be decreasing. Based on these findings, the article presents ways to incorporate debiasing techniques in environmental assessment legislation more generally, and in EU and Dutch legislation in particular.

环境评估文献忽略了环境评估过程中认知和无意识动机偏差（CUMB）的扭曲效应。这是有问题的，因为 CUMB 存在于大多数（如果不是全部）决策情况中，并且可能会严重扭曲决策过程。本文评估了如何或应该如何将去偏差技术纳入（超）国家环境评估立法。本文进行的荷兰案例研究表明，欧盟和荷兰立法没有充分纳入去偏差技术来确保健全的环境决策。此外，荷兰立法纳入去偏差技术的程度正在下降。基于这些发现，