One of the fundamental goals of environmental education (EE) is to equip students with the skills to make more thoughtful decisions about environmental issues. Many examples of environmental and science education curricula work to address this goal by providing students with up-to-date information about a myriad of environmental issues from a variety of scientific disciplines. As noted by previous researchers in EE, an emphasis on scientific information, however, does not help to overcome many of the barriers to improved decision making. To help students become better environmental decision makers, educators must also work to incorporate lessons about decision making in conventional EE curricula. This article provides an overview of findings from the decision sciences and behavioral decision research to highlight some of the most common impediments to high-quality decision making. The authors end with suggestions for curriculum development that might help to improve students' decision-making skills regarding environmental issues.