My research focuses on how greenspace interventions work to support improvements in mental health and in supporting reductions in illicit drug and alcohol use. Greenspace can influence human health through a number of pathways, both passive and active, and it is necessary to combine knowledge from natural sciences and social sciences in order to understand existing frameworks and socio-environmental interactions. While there is promising progress in this research area, there is currently little robust evaluation of existing greenspace interventions in Scotland and I am particularly interested in using realist methods to explore what works, for whom, and in what circumstances.