The New Ecological Paradigm (NEP) scale adapted for use with children (NEP-C) is one of the most frequently used measures of children's environmental beliefs. Though widely utilized, the limitations of the NEP-C instrument are often overlooked. Based on a systematic synthesis of existing literature examining the NEP-C, we argue that the scale assesses specific types of beliefs within the larger NEP, that some children have difficulty comprehending items of this scale, and that the one-factor and three-factor models proposed in the original NEP-C did not achieve an exact fit to empirical data. Additionally, the relevance of the NEP-C total score as a predictor of children's pro-environmental behaviors is questionable. Although the NEP-C is useful for measuring specific types of environmental beliefs, many researchers using this scale may be interested in broader constructs. We highlight potential benefits and drawbacks of using the NEP-C and discuss new directions for environmental education research.