Tim Cohen is the outgoing Director of  the ARC Centre of Excellence for Australian Biodiversity and Heritage (CABAH) and was Director and Climate theme leader for CABAH for most of the 7 years of CABAH's operation. He is Deputy Director of Environmental Futures (Infrastructure) and Deputy Director the Optical Dating Facility. He is the past President of the Australian and New Zealand Geomorphology Group (ANZGG) and past President of the Australasian Quaternary Association (AQUA).