Surface Waters Diverted for Irrigation (IMAGE) Duke University Caption A date palm surrounded by surface waters diverted for irrigation in Morocco 4549 -- Researchers sampled surface water being diverted to irrigate six oases in Morocco and performed isotopic "fingerprinting" to identify sources of rising salinity. Credit Credit - Nathaniel Warner, Duke University Usage Restrictions Please include credit: Nathaniel Warner, Duke University 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.