Carbon Dioxide Scrubber Student Team (IMAGE) Michigan Technological University Caption Undergrads work with graduate students to monitor the carbon dioxide scrubber. The captured gas can be converted into oxalic acid, which is used to process rare earth elements. Credit Nathan Shaiyen/Michigan Tech Usage Restrictions None 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.