CO2 Scrubber (IMAGE) American Chemical Society Caption Chemist Robert Perry checks a flask containing an ingredient -- similar to those in shampoos -- that shows promise for capturing carbon dioxide, the main "greenhouse" gas linked to global warming. Credit GE Global Research 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.