University of Maryland
Center for Environmental Science

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People

A Career Sparked by a Storm

Jeff Cornwell, a faculty member at UMCES for 39 years, began his journey into science coincident with a storm—Hurricane Agnes in 1972 occurred during his high school graduation. A college geology course showed him the devastation the storm left on the upper Chesapeake Bay watershed. Years later, after research in Alaska and Texas, his work at Horn Point involved understanding the long-term impacts of the storm and increasing nutrient inputs on the Bay’s ecosystem. That early work laid the foundation for a career dedicated to understanding sediment dynamics, nutrient cycling, and the health of the Bay.

Cornwell’s research has played a critical role in highlighting the connection between oysters and water quality. His work has helped quantify just how much nitrogen oysters remove from the water—an essential insight for policymakers working to restore the Bay. His leadership brought oyster filtration and nutrient management to the forefront, influencing best management practices and shaping restoration strategies.

In the 1980’s, Cornwell’s colleagues identified wetland loss as a growing problem in the Chesapeake region, particularly in Blackwater National Wildlife Refuge. Today, with sea level rise accelerating that loss, his work informs efforts to rebuild wetlands using dredged material to prevent further erosion. The meshing of the needs of Maryland shipping and commerce with environmental benefits has placed UMCES research at the forefront of understanding the benefits of dredged material for coastal restoration. His research has underscored the crucial role wetlands play in filtering nutrients and buffering shorelines from climate change-driven impacts.

Ten years ago, the question of sediment storage in the Susquehanna River’s reservoirs became a major political and scientific debate. Cornwell, along with Horn Point colleagues, UMCES leadership, and the Maryland Department of the Environment, led a million-dollar research initiative to investigate the issue. Their findings helped shape policies on sediment and nutrient management, reinforcing the need for ongoing monitoring and adaptive strategies for the Bay’s health.

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The New Generation of Leaders

Throughout its history, UMCES has graduated hundreds of new environmental leaders. Today’s UMCES alumni are able and eager to take on the mounting challenges facing our natural world. Here’s just one example of an UMCES alum making a difference.

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The Bay Gets a Grade

In 2007, UMCES Integration and Application Network released the first Chesapeake Bay Report Card. Take a look at how far we’ve come.

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No One Anticipated This

Longtime water quality monitoring in the Chesapeake Bay watershed revealed unintended benefits of the Clean Air Act of 1990.

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Meet the Rachel Carson

Flagship of UMCES’ research fleet, the Rachel Carson makes Chesapeake Bay science happen on the water.

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A Win-Win Partnership

The need to dispose of Baltimore ship channel dredge material created an unprecedented partnership opportunity for a 20+ year study on ecosystem restoration on the Chesapeake Bay’s Poplar Island.

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A Visionary Founder

Who was Reginald Truitt, founder of what would become UMCES? “IN THE SUMMER OF 1919, a brand new graduate student carried a borrowed microscope to a creek north of Solomons Island, Maryland, a knob of land near the meeting point of the Patuxent River and the Chesapeake Bay. In a cramped fisherman’s shack, he set up a makeshift laboratory, installed his microscope, and began studying oyster biology.”