Blue carbon is carbon captured in the world’s ocean and coastal systems. Carbon cycling from the ocean or earth and into the atmosphere provides the foundation for all ecological functions in both natural and engineered systems, and carbon dynamics are of increasing interest globally because they impact climate change patterns. This project will address knowledge data gaps related to carbon dynamics in EWN® projects and will increase the capacity to design and manage EWN projects for maximal carbon cycling benefits. Soil samples from restored/constructed and unaltered wetlands will be analyzed and compared. Results of the study will be used to determine the value of carbon storage in EWN projects and inform the design of future EWN projects to optimize carbon storage.