We are familiar with indices like GDP and the ASX indicating trends in the state of the Australian economy. But what about trends in the state of our environment? An exciting new tool called the Threatened Species Index offers a window into how threatened species are faring and if our collective conservation efforts are stacking up for imperilled wildlife. The index has been made possible through unprecedented collaboration and data-sharing by over 40 research partners led by The University of Queensland, working closely with BirdLife Australia. Project co-leader Dr Elisa Bayraktarov outlines the significance of the index and some of the powerful ways it can be used.