With increasing sea temperatures it is essential to understand what impact climate change has on the ability of pathogens and antimicrobial resistant organisms to survive and proliferate in our coastal waters. Runoff from agricultural lands and discharges of treated and untreated human sewage can introduce pathogens and antimicrobial resistant organisms to our coastal waters. Researchers from the University of Galway together with colleagues from Bangor University, Deltares, and the University of Exeter are investigating whether modelling can be used to assess the movement of pathogens and antimicrobial resistant organisms in coastal environments.