mueller (IMAGE) University of Oklahoma Caption J. Tom Mueller, Ph.D., lead author and research assistant professor in the Department of Geography and Environmental Sustainability, College of Atmospheric and Geographic Sciences at the University of Oklahoma. Credit Provided by the University of Oklahoma 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.