In the annual IAN Report Card, IAN staff reflect on accomplishments from 2023. The self-assessment is based on indicators in four categories: socio-environmental impacts; education and outreach; diversity, equity, inclusion, and justice; and partner engagement. IAN received an overall grade of C- (70%), a moderate score.

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The recent tragic collapse of the Francis Scott Key Bridge has highlighted the critical importance of Baltimore Harbor to the region’s infrastructure, environment, and economy. In response, the University of Maryland Center for Environmental Science (UMCES), through its Chesapeake Global Collaboratory (CGC), hosted “Baltimore Harbor in Context” on October 10, 2024. The event gathered diverse stakeholders and featured plenary talks, panel discussions, and interactive breakout sessions.

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This symposium and report were sponsored by the State of Maryland and convened and produced … by University of Maryland Center for Environmental Science (UMCES). Lead organizers were Dr. Elizabeth North and Dr. Matthew Gray of UMCES Horn Point Laboratory. The symposium team also … included David Nemazie, Conor Keitzer, Roshni Nair, Monica Fabra, and Kurt Florez. Graphic design … and logistical support were provided by the UMCES Integration and Application Network (IAN).

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Birds are vital to our economy, ecosystems, and cultural heritage. Investing in bird conservation benefits communities, businesses, and working lands while reinforcing our nation’s legacy of stewardship and biodiversity. By valuing birds, we ensure a richer, healthier, and more vibrant future for all Americans.

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Reductions of nitrogen, phosphorus, and sediment loads have been the focus of watershed restoration in many regions for improving water quality, including the Chesapeake Bay. Watershed models and riverine monitoring data can provide important information on the progress of load reductions but do not always generate consistent interpretations.

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Coastal environments face unique challenges that profoundly affect human well-being. Stressors such as pollution, rising temperatures, flooding, harmful algal blooms (HABs), and emerging contaminants threaten ecosystems and disproportionately impact vulnerable communities. This report presents the findings from the Fall 2024 Coastal Environment and Community Health course, by graduate students in the Marine, Estuarine, and Environmental Science program at the University System of Maryland.

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Seasonal hypoxia (dissolved oxygen [DO] levels ≤ 2 mg/l) poses a severe threat to coastal ecosystems globally, including the largest estuary in the United States, the Chesapeake Bay. This V-shaped drowned river valley features shallow flanks, where the deepest waters experience persistently low DO levels typically initiated during the spring and ending in late summer or early autumn. Reports on low DO conditions in the Chesapeake Bay date back over a century.

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This booklet explores the rich cultural heritage and economic significance of Baltimore Harbor, a cornerstone of Maryland's and the U.S.'s economic vitality. Historically shaped by its waterfront, Baltimore faces environmental challenges stemming from its industrial past and ongoing issues like wastewater contamination and climate change impacts.

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Many coastal ecosystems have suffered from cultural eutrophication and dead zones. In the Chesapeake Bay, water quality degradation is manifested in low dissolved oxygen, poor water clarity, and decreased submerged aquatic vegetation acreage.

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Many estuaries, including Chesapeake Bay, have suffered from undesirable conditions of algae blooms, poor water clarity, and low dissolved oxygen (DO). To better understand the status and trends of DO criteria attainment deficit (AD), we conducted a comprehensive assessment using monitoring data in the period of 1985–2022 and focused on the comparison of trends among 13 tidal systems.

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