How Speech Propels Pathogens (IMAGE) CNRS Caption Projection of CO2 emitted by a member of the MET Orchestra while singing, recorded using an infrared camera. Credit M. Abkarian, P. Bourrianne and H.A. Stone (with help from the FLIR company and E. Bowman) 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.