Brown Prairie Grass (IMAGE) U.S. National Science Foundation Caption Drought or heat waves seemed to have less effect on grass growth as summer turned to fall. Credit NSF Konza Prairie LTER Site 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.