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Previous Northeast content

Previous regional content in the U.S. Climate Resilience Toolkit was developed by interagency teams of subject matter experts. To keep science represented in the Toolkit current, we now point to the most recent National Climate Assessment for each region. We've preserved our previous content below.

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Key Messages
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  • The seasonality of the Northeast is central to the region’s sense of place. Milder winters and earlier springs in the region are altering ecosystems and environments in ways that adversely impact tourism, farming, and forestry. The region’s rural industries and livelihoods are at risk as less distinct seasons lead to further changes to forests, wildlife, snowpack, and streamflow.
  • Commerce, tourism, and recreation in the Northeast depend on the coast and ocean. Warmer ocean temperatures, sea level rise, and ocean acidification threaten these services. As climate risks increase, the adaptive capacity of marine ecosystems and coastal communities will influence ecological and socioeconomic outcomes.
  • Urban centers in the Northeast are regional and national hubs for cultural and economic activity. The region's critical infrastructure, urban economies, and nationally significant historic sites are already experiencing major negative impacts, and these will become more common with a changing climate.
  • Changing climate threatens the health and well-being of people in the Northeast through more extreme weather, warmer temperatures, degradation of air and water quality, and sea level rise. Additional deaths, emergency room visits and hospitalizations, and a lower quality of life are expected as these environmental changes continue.
  • Climate change impacts in the Northeast—including extreme precipitation events, sea level rise, coastal and riverine flooding and heat waves—will challenge its environmental, social, and economic systems, increasing the vulnerability of its residents, especially its most disadvantaged populations.
  • Communities in the Northeast are proactively planning and implementing actions to reduce risks posed by climate change. Using decision support tools to develop and apply adaptation strategies informs both the value of adopting solutions and the remaining challenges.

Key messages from the Northeast chapter of the Fourth National Climate Assessment.

Northeast map

Sixty-four million people live in the Northeast, densely clustered in some of the most populated metropolitan areas of the United States, including New York City, Philadelphia, Washington, D.C., and Boston. Indeed, the high-density urban coastal corridor between Washington, D.C. and Boston is one of the most developed environments in the world. The region boasts one of the world's leading financial centers as well as the nation's capital, and it has a rich cultural history that predates early European settlement.

The skyline of New York City, looking south at dusk.

In contrast, the region also includes large expanses of sparsely populated but ecologically and agriculturally important areas. The regional landscape is dominated by forest, but it also includes grasslands and extensive marine and estuarine habitats—salt marshes, beach dune and barrier island systems, and fresh and brackish tidal marshes. The Northeast encompasses several major watersheds that empty into the Atlantic Ocean, and the North Atlantic Flyway and feeding grounds for the Right Whale and seabirds are strategic habitats identified as highest priority for conservation.

Fall foliage in Vermont.

The economy in the Northeast is diverse, ranging from dairy farms to forestry, and includes biotech, education, health care, fish processing, marine construction, tourism, finance, transportation, and government.

 

A region in the midst of change

Over the past three decades, there has been significant population movement in the Northeast towards the coastline. Working waterfronts are part of the economic engine driving coastal redevelopment. Some portions of the region have seen significant land cover changes such as increases in paved surfaces, and reductions and shifts in trees, forests, grasses, and wetlands.

A critical issue for the Northeast is addressing its aging infrastructure: roads, bridges, railroad lines, water and wastewater pipelines, culverts, and electrical power networks. The region has the oldest industry and building inventory in the United States, much of which was built along the coast and in estuaries—both of which are highly vulnerable to flooding.

The region's climate is also changing. Recent State of the Climate reports point out the likely impacts of a changing climate on both human and natural resources, which are threatened by rising temperatures, changing precipitation patterns, and a warming ocean, especially in the Gulf of Maine. The stretch of coastline from the tip of the Delmarva Peninsula in Virginia to the elbow of Cape Cod in Massachusetts is experiencing the greatest increase in sea level rise rate globally: 2 to 3.7 mm per year—more than three times the global average.

 

(Map) Local sea level trends in the Northeast region.

Temperatures in the Northeast rose by almost 2°F between 1895 and 2011, and models predict that the region could see a warming of 4.5°F to 10°F by the 2080s (assuming continued increasing emissions). Regional precipitation increased by approximately five inches, or more than 10 percent, during the same period. Seasonal drought risk in summer and fall is also projected to increase over the next century due to warming temperatures and earlier snowmelt.

The Northeast has seen a greater recent increase in extreme precipitation than any other region in the United States—the region experienced more than a 70 percent increase in the amount of precipitation falling in "very heavy events" (defined as the heaviest one percent of all daily events) between 1958 and 2010. The frequency of these heavy downpours is projected to continue to increase over the remainder of the century.

More frequent, intense, and longer heat waves are also projected to increase over the next century in the Northeast, which will affect the region's vulnerable populations as well as its infrastructure, agriculture, and ecosystems. Moderate and extreme heat events already pose a health risk, and climate change could increase this risk. Graphs below illustrate this risk via observed and projected impacts of excess heat on emergency room visits in Rhode Island.

 figure shows observed and projected impacts of excess heat on emergency room visits in Rhode Island via three graphs

This figure shows observed and projected impacts of excess heat on emergency room visits in Rhode Island via three graphs. On the left, maximum daily temperatures in the summer have trended upwards over the last 60 years. In the center, data shows that heat-related ER visits rose sharply as maximum daily temperatures climbed above 80°F. On the right, with continued climate change, Rhode Islanders could experience an additional 400 (6.8% more) heat-related ER visits each year by 2050 and up to an additional 1,500 (24.4% more) such visits each year by 2095 under the higher scenario (RCP8.5).

Building resilience is critical

Federal agencies, through regional groups such as the New England Federal Partners and the Federal Climate Partners for the Mid-Atlantic, are addressing mounting threats on the prosperity and resilience of the Northeast by examining many sectors, including food and water security, infrastructure, and public health and safety.

Toolkit content on the Northeast was developed by the New England Federal Partners (NEFP).

The New England Federal Partners (NEFP) is a group of 17 federal agencies formed to work together on complex environmental issues. The group was officially recognized as a partnership by all participating agencies through a Statement of Common Purpose (PDF) in 2010, which established a framework for communication, cooperation, coordination, and collaboration. 
Through multiple agency cooperation, the NEFP’s aim is to protect the natural environment and public health and support the needs of states, Tribes, and communities of New England.

Thematic focus areas for the partners over the last seven years include coastal and ocean planning, climate change mitigation and adaptation, and resiliency planning. Accomplishments of the NEFP group include:

  • Led the development of the Northeast Ocean Plan approved in December 2016
  • Continually adds and updates tools, case studies, and information on climate resilience to the Northeast region section of the U.S. Global Climate Research Program's Climate Resilience Toolkit
  • Jointly participated in the 2016 Federal Emergency Management Agency Resilience Seminar
  • Consistently participates in conferences, including Tribal leadership and Antioch Climate Solutions
  • Contributes to climate roundtables with state officials in Vermont and Maine
  • Fosters state and local engagement with the Department of Homeland Security Regional Resiliency Assessment Program
  • Coordinates agency activities relating to flooding and the use of the Silver Jackets Program and coastal assessment and management
  • Collaborates on inter-agency regional issues such as drought, floods, climate change, sedimentation, and coastal assessment and management
  • Conducts quarterly calls and meetings to improve efficiency and effectiveness of federal activities for New Englanders

NEFP Executive Team

  • Ellen L. Mecray (National Oceanic and Atmospheric Administration)
  • Cynthia L. Greene (U.S. Environmental Protection Agency)
  • Bill DeLong (U.S. Department of Homeland Security)
  • Keith Robinson (U.S. Geological Survey)