Polly Arnold (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Polly Arnold, Division Director of Berkeley Lab's Chemical Sciences Division, with Matt Hernandez, a graduate student researcher. Hernandez is using a glove box in the lab where the ammonia research was conducted. Credit Thor Swift/Berkeley Lab Usage Restrictions N/A 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.