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Protecting and restoring the largest estuary in North America.

Watermen on the Bay Young watermen are redefining the character and approach to working the Chesapeake Bay. © Jason Houston

The Chesapeake Bay is the largest estuary in North America and one of its most vital ecosystems. Although the brackish waters of the Bay only touch Maryland and Virginia, its 64,000-square-mile watershed spans six states and the District of Columbia connects a diverse landscape of farms, forests, cities and wetlands. This vast region drives the economy through food production, shipping and tourism and sustains over 9 million people and over 3,600 species of plants and animals. The health of the Bay is inseparable fromthe well-being of the communities and wildlife and fisheries that depend on it.

This is why The Nature Conservancy has recently designated the Bay as one of six priority locations around the world in our Global Regenerative Foodscape strategy. Within a Foodscape, TNC convenes multi-stakeholder actors to address systems-level mechanisms including policy, markets, finance, knowledge networks and capacity building, that support the transition to regenerative food systems that are durable over the long term.

Clean water, healthy habitats

TNC is ready to accelerate the critical work of securing cleaner water and healthy habitats for the benefit of all within the Bay watershed.

An aerial image of farms bordering the Chesapeake Bay.
Chesapeake Bay An aerial view of farmland beside Chesapeake Bay. © Katie Schuler
Two men standing on a boat dumping oysters in the water
SOAR deployment Chesapeake An oyster planting in the Chesapeake Bay as part of the SOAR program © Humna Sharif/TNC
An aerial image of farms bordering the Chesapeake Bay.
Chesapeake Bay An aerial view of farmland beside Chesapeake Bay. © Katie Schuler

Water

Clean Water

Clean water is key to restoring the Bay and supporting biodiversity. Too many nutrients and sediment from the watershed cause algal blooms that create dead zones with no oxygen. TNC is reducing nutrient pollution from agriculture and the growing stormwater runoff from cities by advancing regenerative agriculture and modern stormwater technology, strengthening local communities and restoring biodiversity throughout the Bay.

Two men standing on a boat dumping oysters in the water
SOAR deployment Chesapeake An oyster planting in the Chesapeake Bay as part of the SOAR program © Humna Sharif/TNC

Habitats

Thriving Habitats

The wetlands, forests, oyster reefs and other unique habitats of the Chesapeake Bay watershed support incredible biodiversity, including the region’s food web. TNC is focused on protecting and restoring these natural habitats, as well as making them more resilient to a changing climate. From the headwater Appalachian forests, to the marshes that fringe the Bay, to the oyster sanctuaries in the water, TNC is using science to identify critical habitats, and working with coalitions of partners to keep those places healthy and protected.

Our work to restore the Bay by prioritizing clean water and healthy habitats is done with the partnership and support of people and communities that depend on the abundance of the Bay for their livelihoods. We work with farmers, agribusinesses, oyster growers, private landowners, and local communities because we know that these partnerships are key to ensuring tangible, lasting results.