Green Roof Research (IMAGE) University of Cincinnati Caption Ishi Buffam and Mark Mitchell are at one of the green roofs at the Civic Garden Center of Greater Cincinnati. Credit Andrew Higley/University of Cincinnati 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.