Lead by Ramesh Wilson, this project aims to disentangle the individual and combined effects of global warming and nutrient pollution on rocky shore intertidal communities. Taking inspiration from this paper, we installed passively-warmed settlement plates in areas with and without nutrient pollution across the globe. This will allow us to explore biogeographic context-dependencies on community composition when exposed to these stressors. HotMess has been set up at 11 sites from Chile to Norway, covering a wide latitudinal gradient. This is the first coordinated, global study on multiple stressor intertidal ecology.