Researchers and policy-makers have widely hypothesized that psychological distance to climate change acts as a barrier to climate action, and that reducing this psychological distance is a promising strategy to promote it. However, over the last decade, correlational and experimental studies have highlighted complex and inconsistent results, raising doubts about the effects of reduced psychological distance to climate change on policy support and intention to perform climate-related behaviours. To address this issue, this research adopts a meta-analytical approach (i) to evaluate the size of the effect of psychological distance to climate change on climate action, and (ii) to investigate some factors that might explain the heterogeneity of these effects.