People who endorse right-wing authoritarianism (RWA) and social dominance orientation (SDO) tend to be less concerned about the environment. Yet, the extant literature has so far relied on cross-sectional data to examine the associations between RWA, SDO and environmentalism. We present cross-lagged panel analysis of the associations between RWA, SDO, pro-environmental attitudes and climate change denial using data from 674 undergraduates surveyed twice over five months. RWA and SDO were negatively related to pro-environmental attitudes while positively related to climate change denial in cross-sectional analysis. Notably, RWA predicted change in both environmental variables over time, while SDO did not. This suggests that change in general pro-environmental attitudes and climate change denial are motivated more by the desire to conform to traditional values, and less by the desire for human dominance over nature.