Kate Charlesworth is a public health physician in Sydney and the Medical Director of the Climate Risk & Net Zero Unit at NSW Health. Kate initially worked as a hospital doctor in Perth and Sydney, before undertaking much of her public health medicine training in the UK. In England, she worked in the Greener NHS program, the leading healthcare decarbonisation program in the world. Kate has worked in sustainability roles across NSW Health since 2018 and also has a PhD in low-carbon healthcare.