River Salinization (IMAGE) University of Barcelona Caption A third part of all fluvial systems in Spain presents high salinization, an environmental problem with severe environmental, economic and health impacts worldwide. Credit Rubén Ladrera, University of La Rioja (Spain) Usage Restrictions The image may only be used with appropriate caption or credit. 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.