Helen is the inaugural Honorary Professor of Climate Change and Mental Health at the University of Sydney. She is a widely-cited psychiatric epidemiologist and expert in how climate change, disasters and social and physical place influence mental health and wellbeing. She advises on national and international research programs and is a lead member of the MJA-Lancet (Australian) Countdown scientific team. She has developed multiple population screening measures including the Australian Community Participation Questionnaire, the Brief Weather Disaster Trauma Exposure and Impact Screen and others which are included in population health and intervention studies around the world. Helen has been supported by competitive research funding and has led influential research-policy initiatives. She also holds an honorary appointment at Macquarie University.