Lead author Vivienne Reiner (IMAGE) University of Sydney Caption Lead author and PhD student Vivienne Reiner from the Centre for Integrated Sustainability Analysis in the Faculty of Science at the University of Sydney. Credit The University of Sydney Usage Restrictions For this story License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.