Climate change poses significant health risks. Nurses assess, treat, and educate patients about health risks. However, nurses' level of awareness, motivation, and behaviors related to climate change and health is not known. This study developed and tested a novel tool measuring these elements. Three hundred fifty-seven nurses responded to the overall survey. Exploratory factor analysis (EFA) assessed the factor structure of the 22-item CHANT survey and Cronbach's alpha estimated internal consistency. A five-factor model was retained through the EFA, demonstrating good model fit (comparative fit index [CFI] = .95, root mean square error of approximation [RMSEA] = .04, standardized root mean square residual [SRMR] = .09), and items were internally consistent (Cronbach's alpha for each subscale >.70). CHANT has been developed and psychometrically examined and is ready for further use and study.