Turning Carbon Dioxide Back into Coal (VIDEO) RMIT University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Scientists have used liquid metals to turn carbon dioxide back into solid coal, a breakthrough that could transform our approach to carbon capture and storage. Credit RMIT University Usage Restrictions Credit RMIT University 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.