streb abera chala (IMAGE) Johannes Gutenberg Universitaet Mainz Caption Professor Carsten Streb (left) and Dr. Soressa Abera Chala scrutinizing the process of conversion of carbon dioxide to ethanol in the lab Credit photo/©: Julius Wetzel Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.