Water use is an important and well researched issue in the cotton industry. However, there is growing interest worldwide in water use throughout the product supply chain, covering not only production, but also manufacturing and use. At the farm level, water use can be determined using a water balance, but there is still a need to aggregate data across the whole supply chain using a specialist approach. To do this, there are two main supply chain water assessment methods; water footprinting (WF) and life cycle assessment (LCA). A recent review of these methods for CRDC concluded that LCA is the most robust and useful method for conducting supply chain water use assessments in the Australian cotton industry for a number of reasons.