Matthias Ruth, University of Maryland (IMAGE) University of Maryland Caption Matthias Ruth, director of the University of Maryland Center for Integrative Environmental Research, says the GPI more accurately reflects the "state of the state." Credit University of Maryland 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.