Novak (IMAGE) University of Wisconsin-Madison Caption First author of the study Gordon Novak pictured with the National Oceanic and Atmospheric Administration chemical-sensing equipment used in the study. Credit Courtesy of Gordon Novak Usage Restrictions None License Original 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.