Green Salt Marsh (image) National Science Foundation Share Print E-Mail Caption Where are all the salt marshes going? Excess nutrients may be to blame for their decline. Credit NSF Plum Island Ecosystems LTER Site Usage Restrictions None Share Print E-Mail 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.