Dr Aditya (Adi) Vyas MBBS MPH FAFPHM FHEA GAICD is a public health physician and Staff Specialist in Quality & Safety at Western Sydney Local Health District. He was the inaugural Lancet Countdown Oceania Fellow at The University of Sydney, and senior advisor to the United Nations COP28 Health Programme, which delivered the first-ever Health Day at the international climate change negotiations. Adi is a Fellow and Examiner of the Australasian Faculty of Public Health Medicine, and graduate of the Australian Institute of Company Directors.