North Carolina
Northeastern North Carolina is bound by a barrier island system that borders the Atlantic Ocean and connects to the Albemarle-Pamlico Sound Estuary, which is the second largest in North America. The region is home to more than 2.7 million people. Millions more visit the area because of its wide array of natural resources, recreational opportunities and picturesque views. The entire region is very low-lying and surrounded by water, leaving coastal communities vulnerable to severe storms, flooding, and rapid shoreline change.
The Nature Conservancy has partnered with Dare County, to identify nature based solutions to these risks. The team has developed two applications on the Coastal Resilience mapping platform. These apps will help stakeholders identify: 1) oyster restoration sites to reduce shoreline erosion and 2) open space in the floodplain. This work builds on more than 35 years of conservation in the NeNC region and five years of Conservancy research to assess shoreline risk and vulnerability at the Alligator River National Wildlife Refuge (ARNWR). Much of the work in ARNWR is focused on the benefits of oyster reefs, wetland plant communities and hydrological restoration, and this information will help guide future application of restoration projects and management of coastal lands.
Overview
Historically, salt marshes, oyster reefs, coastal forests and barrier islands functioned to absorb energy from wind and waves. As development has increased, and coastal natural habitats compromised and/or lost, communities on the coast are more at risk. Restoring and protecting these natural habitats will reduce this risk.
Natural Solutions

Shellfish beds are an important habitat in the Pamlico Sound. Photo Credit: AaronMcCall/The Nature Conservancy
Oyster Reefs
One nature based approach to increasing coastal resiliency is restoring oyster reefs. Oyster reefs provide habitat for marine life. Oysters filter water, improving its quality. And, in a world where coastlines are changing, they provide valuable protection for shoreline – building new oyster reefs will lessen wave action and reduce shoreline erosion. The Conservancy has developed an application (Restoration Explorer) on the Coastal Resilience mapping tool that allows community planners and managers adjust an index of oyster reef parameters and determine potential restoration sites.

Volunteers plant salt tolerant vegetation (Spartina patens) in an area vulnerable to storm surge. Location Alligator River National Wildlife Refuge. Photo Credit: Christine Pickens
Marshes
Prioritizing the protection of existing marshes and restoring key coastal marshes is a potential natural solution. Marsh restoration efforts not only provide habitat to fish and wildlife resources, but also give protection to shorelines, infrastructure and coastal communities from storm surge and flooding. They also provide ecological functions such as carbon sequestration, water filtration, as well as provide ample opportunities for recreation.
Living Shorelines
One common response to erosion and flooding is hardening the shoreline through the use of built structures such as bulkheads or breakwaters. In many cases, these structures actually make erosion worse, particularly on either side of the structure where erosion forces are increased. But, there are natural solutions that are effective. One example of a potential natural solution is a living shoreline. This option is an innovative approach that combines various shoreline stabilization methods while restoring and/or preserving the estuary, marshes and upland buffers. Depending on site specific conditions, living shoreline projects range from simple plantings, to more complex approaches that combine wood, stone, or other structures with bank regrading and marsh planting.
Natural solutions such as living shorelines, restoring and protecting oyster reefs and marshes can provide lasting benefits to both coastal communities and the environment. The Conservancy and its conservation partners are working to develop innovative applications for use in the Coastal Resilience tool that allow planners and managers to evaluate where and how restored oyster reefs and coastal marshes may be used to help protect communities from coastal hazards while simultaneously improving habitat.
Resources
To learn more about natural solutions:
- Download this report “Climate Change Adaptation Alligator River National Wildlife Refuge Dare County, North Carolina“
- Download this three-fold brochure “Restoring North Carolina’s Oysters“
- Download this brochure “Climate Adaptation: Resiliency on the Albemarle Peninsula“