Dying Swamp (IMAGE) Tulane University Caption A swamp-to-marsh transition near Houma, Louisiana shows dead trees that are most likely the result of saltwater intrusion. Credit Torbjorn Tornqvist 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.