Ray Weiss and Jens Muehle (image) University of California - San Diego Caption Scripps geoscientists Ray Weiss (green shirt) and Jens Muehle amid collection cylinders used to collect air samples from a variety of locations around the world. Weiss and Muehle led a study that found that the greenhouse gas nitrogen trifluoride, used in the manufacture of flat-panel monitors, escapes to the atmosphere at levels much higher than previously assumed. Credit Scripps Institution of Oceanography, UC San Diego Usage Restrictions None 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.