In the Chesapeake Bay, excess nitrogen (N) from both landscape and atmospheric sources has for decades fueled algal growth, disrupted aquatic ecosystems, and negatively impacted coastal economies. Since the 1980s, Chesapeake Bay Program partners have worked to implement a wide range of measures across the region—from the upgrading of wastewater treatment plants to implementation of farm-level best management practices—to reduce N fluxes to the Bay.

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Extensive efforts to adaptively manage nutrient pollution rely on Chesapeake Bay Program’s (Phase 6) Watershed Model, called Chesapeake Assessment Scenario Tool (CAST), which helps decision-makers plan and track implementation of Best Management Practices (BMPs). We describe mathematical characteristics of CAST and develop a constrained nonlinear BMP-subset model, software, and visualization framework.

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The Chesapeake Bay ecosystem is a national treasure that provides almost $100 billion annually of goods and services. The Chesapeake Bay Program (CBP), is one of the largest federal-state restoration partnerships in the United States and is underpinned by rigorous science. The U.S. Geological Survey (USGS) has a pivotal role as a science provider for assessing ecosystem condition and response in the Chesapeake watershed.

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This document is the work of a team assembled by the International Coral Reef Society (ICRS). The mission of ICRS is to promote the acquisition and dissemination of scientific knowledge to secure the future of coral reefs, including via relevant policy frameworks and decision-making processes.

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This report card provides a transparent, timely, and geographically detailed assessment of Chesapeake Bay. Since 2016, UMCES has engaged stakeholders throughout the watershed to transform the report card into an evaluation of the Chesapeake Watershed health. Watershed health includes traditional ecosystem indicators, but also social, economic, and cultural indicators. This is the second year the watershed has been scored, and four new indicators have been added.

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This newsletter summarizes the findings of a MEES course entitled “Developing an Environmental Justice Index for the Chesapeake Bay Watershed Report Card,” conducted in spring 2021. A video was also produced and can be found here: https://youtu.be/28siz8Eok4g

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This newsletter highlights synthesis outcomes from the Fall 2020 Economic Indicators workshop. Five new economic indicators were generated that will eventually be incorporated into future iterations of the Chesapeake Bay Report Card.

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The National Centre for Sustainable Coastal Management (NCSCM), Ministry of Environment, Forest and Climate Change (MoEF&CC), jointly with the Odisha Forestry Sector Development Project (OFSDP-II) and the University of Maryland Center for Environmental Science, brought together over 40 local and regional experts and stakeholders in February 2019. Together the group chose ecosystem health indicators, thresholds and a reporting framework for Bhitarkanika Conservation Area.

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This companion document to the 2020 Mississippi River report card contains information about data sources for all indicators, summary of analysis methods, and scoring details for each of the six America’s Watershed Initiative goals, and for two watershed wide indicators. Additional information regarding the goals is included to provide greater detail and discussion than is possible in the report card document.

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This is the seventh Coastal Georgia Ecosystem Report Card. Georgia DNR has been creating report cards since 2014, when IAN helped kick off the process. This report card updates indicators and methods. New indicators added were dissolved oxygen, spotted seatrout, and bald eagles. Overall, Coastal Georgia received a score of 77%, a B+.

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