Professor Emma Johnston AO is a marine scientist at UNSW Sydney and a national advocate for improved environmental management and conservation. Emma studies human impacts in the oceans including pervasive threats such as climate change, plastic pollution, and invasive species. Emma conducts her research in diverse marine environments from the Great Barrier Reef to icy Antarctica and provides management recommendations to industry and government. In recognition of her contributions to environmental science, communications, and management, Emma has received numerous awards including the Australian Academy of Science’s Nancy Millis Medal, the Royal Society of New South Wales Clark Medal, the Eureka prize for Science Communication, and in 2018 she was made an Officer of the Order of Australia (AO). She is immediate past President of Science & Technology Australia, a current Board Member of the Great Barrier Reef Marine Park Authority and Co-Chief Author of the Australian Government’s State of Environment Report 2021. Emma is a high-profile science communicator and television presenter for the ongoing BBC/Foxtel series, Coast Australia and has appeared multiple times on ABC Catalyst, The Drum and Q&A. Emma is currently Dean of Science and Professor of Marine Ecology and Ecotoxicology at UNSW Sydney.