This study tests the hypotheses that overall environmental knowledge and climate-specific knowledge are inversely related to climate change anxiety, such that people who know more (less) about the environment in general, and about climate in particular, are less (more) anxious about climate change. Time lagged data were collected from N = 2,066 individuals in Germany. Results showed that, even after controlling for demographic characteristics, personality characteristics, and environmental attitudes, overall environmental knowledge and climate-specific knowledge were negatively related to climate change anxiety (both B = -.09, p < .001).