Professor Chris Turney (IMAGE) University of New South Wales Caption Professor Chris Turney at UNSW Sydney's Chronos 14Carbon-Cycle Facility, where the ancient kauri trees were analysed. Credit Richard Freeman / UNSW Sydney Usage Restrictions Photo can only be used with credit and in relation to this story License Licensed 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.