Climate predicts extraversion genes

Population differences in polygenic scores for Extraversion across Europe can be tested against measurable geographic variables (latitude, longitude, winter temperature, rainfall) and against long‑term climate reconstructions to see if climate or geography better explains observed genetic gradients. Robustness checks across SNP panels and spatial controls are essential because maps invite post‑hoc storytelling. — If climate‑geography reliably predicts behavioral polygenic scores, it would reshape debates about how environment, selection, and demography interact and raise stakes for how polygenic results are communicated and used in policy or identity politics.