The Chesapeake Bay is the largest estuary in the United States, providing habitat for a diverse array of plant and animal species. It serves as a critical stopover point for migratory birds along the Atlantic Flyway. The Bay's ecosystems, including marshes, wetlands, and underwater grass beds, contribute to biodiversity and support various commercially important species, such as blue crabs, oysters, and striped bass.

The Chesapeake Bay also has a rich history dating back to the Native American communities that first inhabited the region. European settlers relied on the Bay for sustenance and trade, leading to the establishment of historic ports and towns along its shores. The Bay played a crucial role in early American history, serving as a backdrop to significant events such as the American Revolution and the War of 1812. Historic sites, including lighthouses and battlefields, dot the Bay's coastline.

Each year the Chesapeake Bay Foundation releases a report card summarizing the overall state of the Bay's health. The score is given on a numerical scale and also translated into a "report card" grade. The last released score, 2022, was a 32 which translated to a D+.

This market will resolve when the 2023 report is released. If the report card grade of the bay is a C- or greater, this will resolve YES. If the grade is a D+ or lower (same or worse than last year) it will resolve NO.

For more information on what goes into the report, and how they calculate their grade, see: https://www.cbf.org/document-library/cbf-reports/2022-state-of-the-bay-report.pdf