An Unusual Bowl-Shaped Molecule (IMAGE) American Chemical Society Caption An unusual bowl-shaped molecule (shown) that pulls carbon dioxide out of the air may provide exciting new possibilities for dealing with global warming, a scientist says. Credit The American Chemical Society 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.