2024 No Psychological benefits of a biodiversity-focussed outdoor learning program for primary school children https://doi.org/10.1016/j.jenvp.2019.101381 Harvey, Deborah J. Europe Experimental Students Elementary (K-5) Green space Stress/Anxiety Cognitive Function outdoor education Biodiversity mood primary education Wellbeing biophilia A yearlong school-based biodiversity curriculum for 8-11-year-olds improved mood and wellbeing compared to a control group. Benefits were strongest among initially nature-disconnected students. Suggests embedding nature-based learning in curriculum may improve student mental health. 2019