Trap, Contain and Convert (IMAGE) Washington University in St. Louis Caption Basalt rocks like these can trap CO2 gas and convert it into an inert mineral. New research from scientists at Washington University in St. Louis shows the rate at which the process takes place. Credit Joe Angeles/Washington University in St. Louis 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.