Eco-anxiety, which refers to the anxiety experienced in response to worsening environmental conditions, is a growing global phenomenon. Climate change anxiety, due to the escalating impact of ongoing climate change, stands out as the most commonly recognized form of eco-anxiety. Nevertheless, numerous uncertainties persist regarding the relationship of this eco-anxiety response to pro-environmental behaviors, as well as its connection with trait anxiety and the perception of the environmental crisis. In this study, we conducted an analysis with a sample size of 431 participants to elucidate the respective implications of these factors, delving into the different facets of the eco-anxiety response: worry and anxiety-related impairments. We measured eco-worry using a brief 5-item scale and assessed climate anxiety-related impairments using the Climate Change Anxiety Scale (CCAS). Our findings reveal that eco-worry acts as a mediator between the perception of the environmental crisis and the manifestation of climate anxiety-related impairments. Furthermore, eco-worry plays a constructive role in relation to the commitment to pro-environmental behaviors, with no additional contribution from the climate anxiety reaction involving impairments. In summary, our findings underscore the existence of distinct constructs within the anxiety response to climate change and environmental issues, each with different contributing factors