Developing valid and reliable measures of psychological responses to climate change is of high importance, as this facilitates our understanding of people’s psychological responses, including their pro-environmental behavior. Recently, the Climate Change Worry Scale (CCWS) was introduced. This study aimed to develop the first Polish version of the CCWS and explore its psychometric properties. Our sample comprised 420 Polish adults aged 18–70, with a mean age of 26.20 (standard deviation = 10.61) years. The CCWS’s factor structure was assessed with confirmatory factor analysis. McDonald’s omega and Cronbach’s alpha coefficients were computed to assess internal consistency reliability. Pearson correlations between climate change worry (CCW) and experience of climate change (i.e., an individual’s level of perception of being affected by climate change), pro-environmental behavior, ill-being (i.e., anxiety and depression symptoms), and well-being were calculated. Our results support the strong factorial validity of the CCWS, conforming to its intended one-factor solution, with excellent internal consistency reliability for the total scale score (i.e., McDonald’s omega and Cronbach’s alpha values of 0.93). We noted large positive correlations between CCW and experiences of climate change, as well as pro-environmental behavior, and medium positive correlations with psychopathology symptoms. CCW scores were not associated with well-being. As the CCWS represents a measure of a specific manifestation of worry, we also examined its discriminant validity against more general psychological distress markers, and it evidenced strong validity in this regard. Overall, the Polish version of the CCWS appears to have strong psychometric properties, and will therefore be a useful tool to use in research on psychological responses to climate change.

Background/Objectives: The Hogg Eco-Anxiety Scale (HEAS-13) is a thirteen-item measure of eco-anxiety, with four dimensions: (1) affective symptoms, (2) rumination, (3) behavioural symptoms, and (4) anxiety about personal impact. Being a recently developed questionnaire, data on its psychometrics are limited. The aim of this study was to introduce a Polish version of the HEAS-13 and examine its psychometric properties. Methods: Our sample consisted of 634 Polish-speaking adults, with ages ranging from 18 to 67 years. We assessed the HEAS-13’s factor structure, internal consistency, test–retest reliabilities, and its concurrent validity via relationships with climate-related variables, psychopathology symptoms, and well-being. We put emphasis on examining the discriminant validity of the HEAS-13 against general psychological distress. Results: As expected, the Polish HEAS-13 demonstrated strong factorial validity with an intended four-factor structure. The internal consistency and test–retest reliabilities of the scale were good and moderate, respectively. Higher levels of eco-anxiety were associated with higher environmental concerns, the experience of climate change (i.e., one’s perception of being affected by climate change), pro-environmental behavioural engagement, climate change worry, anxiety, and depressive symptoms, as well as lower levels of well-being. We empirically supported the strong discriminant validity of the HEAS-13, demonstrating that eco-anxiety was separable from general psychological distress. We also noted that females, younger people, and those with lower educational levels experienced higher eco-anxiety. To facilitate the use of this measure, we propose a potential screening cut-off value for the HEAS-13, which can indicate meaningfully elevated levels of eco-anxiety. Conclusions: Overall, the Polish version of the HEAS-13 has strong psychometric properties, usefully enabling the examination of climate-related anxiety. Our findings highlight its potential in cross-cultural research and healthcare practice.