How sea levels in 40 cities will change by 2050

Published 3:30 pm Monday, October 16, 2023

How sea levels in 40 cities will change by 2050

By 2050, global sea levels could increase by 1 foot from where they were at the start of the millennium. Iconic beaches, large city centers, and quaint coastal towns will all have to be adapted for higher water levels.

Sea level rise means more than just coastal land eaten up by the ocean. It will cause more inland neighborhoods to be at risk of storm surges during hurricanes and high tides, more regular flooding, and saltwater intrusion into freshwater resources.

For communities facing the brunt of shifting waters, planning for resilience has become paramount. Charleston, South Carolina’s climate resilience office has a multipronged plan, including seawall construction and shoreline restoration. Still, Charleston Harbor experienced 70 flooding events in 2022, the second highest in recorded history dating back to 1922.

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Continued flooding and extreme weather events highlight the urgency of infrastructure fixes to mitigate sea level rise, but such plans are often expensive.

In California, the San Francisco Bay Conservation and Development Commission has identified projects to enhance and build seawalls, levees, and marshes across the region’s coastline. The cost of all the projects is estimated to be $110 billion by 2050. So far $5 billion has been allocated.

In western Oregon, the state’s Department of Transportation estimates it would cost over $40 million to make a section of U.S. Highway 101 resilient to cliff erosion that will become more pronounced with sea level rise.

Planning for the future is also challenging for smaller communities. Solutions like paying to move and demolish waterfront houses are often unpopular with homeowners, and beach nourishment, or adding more sand to the coastline from the ocean floor, is an expensive and temporary solution.

The impact of sea level rise will be far-reaching on both the Atlantic and Pacific sides of the U.S., but sea level rise will not affect the world equally. Some of the countries impacted will be those who have contributed the least to global greenhouse gas emissions such as Vietnam, Bangladesh, and small South Pacific islands.

An analysis from Carbon Brief found the U.S. was responsible for releasing over 500 gigatons of carbon dioxide equivalent since 1850, or 20% of the world’s historical total. Other major emitters include China (11%) and Russia (7%). As human activity releases greenhouse gases into the atmosphere, their heat-trapping characteristics fuel the warmer weather that causes sea level rise.

Ocean water naturally expands with warmer temperatures. Along with meltwater from shrinking Arctic sea ice and glaciers pouring into the world’s oceans, global mean sea levels increase. Emissions currently in the atmosphere mean sea level rise can’t be stopped, but lower emissions scenarios can slow its pace.

Using data from the National Oceanic and Atmospheric Administration’s sea level rise technical report, released in 2022, Stacker identified projected sea level rise by 2050 for 40 cities in the U.S. The report identifies five sea level rise scenarios based on changes by 2100 from 2000 levels. They are low (an average of 1 foot globally), intermediate-low (1.6 feet), intermediate (3.3 feet), intermediate-high (4.9 feet), and high (6.6 feet). For each, projections under low, medium, and high emissions scenarios are included. Stacker focused on each emissions scenario for low, intermediate, and high sea level rise.

Unlike most places on this list, cities in Alaska are seeing falling sea levels, as its land is actually rising with shifting tectonic plates. Read on to see where major coastal cities in the U.S. stand.


A city skyline with a frozen lake in the foreground and mountains in the background.

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Anchorage, Alaska

– NOAA Region: National
– Low sea level rise scenarios:
— With low emissions: -1.0 feet
— Medium emissions: -0.7 feet
— High emissions: -0.5 feet

– Intermediate sea level rise scenarios:
— With low emissions: -0.9 feet
— Medium emissions: -0.6 feet
— High emissions: -0.3 feet

– High sea level rise scenarios:
— With low emissions: -0.6 feet
— Medium emissions: -0.2 feet
— High emissions: 0.3 feet

An aerial view of a city near the water.

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Annapolis, Maryland

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.1 feet
— High emissions: 1.4 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.3 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.7 feet
— High emissions: 2.2 feet

A harbor with boats docked at a dock.

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Astoria, Oregon

– NOAA Region: Northwest
– Low sea level rise scenarios:
— With low emissions: 0.0 feet
— Medium emissions: 0.1 feet
— High emissions: 0.2 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.2 feet
— Medium emissions: 0.4 feet
— High emissions: 0.6 feet

– High sea level rise scenarios:
— With low emissions: 0.5 feet
— Medium emissions: 0.8 feet
— High emissions: 1.3 feet

A city beach with tall buildings.

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Atlantic City, New Jersey

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.4 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.4 feet
— High emissions: 1.7 feet

– High sea level rise scenarios:
— With low emissions: 1.3 feet
— Medium emissions: 1.7 feet
— High emissions: 2.3 feet

An aerial view of a harbor and town.

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Bar Harbor, Maine

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.9 feet
— High emissions: 1.2 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.5 feet

– High sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.4 feet
— High emissions: 2.0 feet

An aerial view of a bridge over a body of water.

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Bay St. Louis, Mississippi

– NOAA Region: Eastern Gulf
– Low sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.4 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.4 feet
— Medium emissions: 1.8 feet
— High emissions: 2.3 feet

A view of a city skyline from across the harbor.

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Boston

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 1.0 feet
— High emissions: 1.2 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.2 feet
— High emissions: 1.5 feet

– High sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.5 feet
— High emissions: 2.0 feet

A view of a city skyline from across the water.

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Bridgeport, Connecticut

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 1.0 feet
— High emissions: 1.2 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.2 feet
— High emissions: 1.5 feet

– High sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.5 feet
— High emissions: 2.0 feet

A row of colorful houses with palm trees along the street.

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Charleston, Cooper River Entrance, South Carolina

– NOAA Region: Southeast
– Low sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.0 feet
— High emissions: 1.1 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.2 feet
— High emissions: 1.5 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.6 feet
— High emissions: 2.1 feet

A beach with a pier in the background.

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Corpus Christi, Texas

– NOAA Region: Western Gulf
– Low sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.4 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.4 feet
— Medium emissions: 1.8 feet
— High emissions: 2.3 feet

An aerial view of a fort on the coast.

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Dauphin Island, Alabama

– NOAA Region: Eastern Gulf
– Low sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 0.9 feet
— High emissions: 1.1 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.2 feet
— High emissions: 1.4 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.6 feet
— High emissions: 2.1 feet

An aerial view of a residential area along the beach.

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Fernandina Beach, Florida

– NOAA Region: Southeast
– Low sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.8 feet
— High emissions: 1.0 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.3 feet

– High sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.5 feet
— High emissions: 2.0 feet

A bridge over a body of water at sunset.

Paul S. Wolf // Shutterstock

Freeport, Texas

– NOAA Region: Western Gulf
– Low sea level rise scenarios:
— With low emissions: 1.4 feet
— Medium emissions: 1.6 feet
— High emissions: 1.8 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.6 feet
— Medium emissions: 1.8 feet
— High emissions: 2.1 feet

– High sea level rise scenarios:
— With low emissions: 1.8 feet
— Medium emissions: 2.2 feet
— High emissions: 2.8 feet

View of a pleasure pier.

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Galveston Pleasure Pier, Texas

– NOAA Region: Western Gulf
– Low sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.4 feet
— High emissions: 1.6 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.4 feet
— Medium emissions: 1.6 feet
— High emissions: 1.9 feet

– High sea level rise scenarios:
— With low emissions: 1.7 feet
— Medium emissions: 2.1 feet
— High emissions: 2.6 feet

An aerial view of a residential area near the ocean.

Daniel Carlson // Shutterstock

Grand Isle, Louisiana

– NOAA Region: Western Gulf
– Low sea level rise scenarios:
— With low emissions: 1.5 feet
— Medium emissions: 1.7 feet
— High emissions: 1.9 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.7 feet
— Medium emissions: 2.0 feet
— High emissions: 2.3 feet

– High sea level rise scenarios:
— With low emissions: 2.0 feet
— Medium emissions: 2.4 feet
— High emissions: 2.9 feet

An aerial view of a city by the large body of water.

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Hilo, Hawaii

– NOAA Region: Hawaiian Islands
– Low sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.7 feet
— High emissions: 0.9 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.4 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.6 feet
— High emissions: 2.2 feet

A city skyline dominated by tall buildings, beaches, and water.

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Honolulu

– NOAA Region: Hawaiian Islands
– Low sea level rise scenarios:
— With low emissions: 0.5 feet
— Medium emissions: 0.6 feet
— High emissions: 0.7 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 0.9 feet
— High emissions: 1.2 feet

– High sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.4 feet
— High emissions: 2.1 feet

A row of buildings close to water with green mountains in the background.

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Juneau, Alaska

– NOAA Region: National
– Low sea level rise scenarios:
— With low emissions: -2.0 feet
— Medium emissions: -1.9 feet
— High emissions: -1.8 feet

– Intermediate sea level rise scenarios:
— With low emissions: -1.7 feet
— Medium emissions: -1.6 feet
— High emissions: -1.4 feet

– High sea level rise scenarios:
— With low emissions: -1.5 feet
— Medium emissions: -1.2 feet
— High emissions: -0.8 feet

A row of houses with palm trees in the background.

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Key West, Florida

– NOAA Region: Southeast
– Low sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.8 feet
— High emissions: 1.0 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.0 feet
— High emissions: 1.3 feet

– High sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.5 feet
— High emissions: 2.0 feet

A wooden dock with boats docked in the water.

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Lewes, Delaware

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.1 feet
— High emissions: 1.4 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.3 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.3 feet
— Medium emissions: 1.7 feet
— High emissions: 2.2 feet

A city skyline with palm trees and skyscrapers.

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Los Angeles

– NOAA Region: Southwest
– Low sea level rise scenarios:
— With low emissions: 0.2 feet
— Medium emissions: 0.3 feet
— High emissions: 0.4 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.5 feet
— Medium emissions: 0.6 feet
— High emissions: 0.9 feet

– High sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 1.1 feet
— High emissions: 1.6 feet

Boats docked in a port.

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Monterey, California

– NOAA Region: Southwest
– Low sea level rise scenarios:
— With low emissions: 0.3 feet
— Medium emissions: 0.4 feet
— High emissions: 0.5 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.5 feet
— Medium emissions: 0.7 feet
— High emissions: 0.9 feet

– High sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.1 feet
— High emissions: 1.6 feet

A wooden boat docked at a small harbor.

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Nantucket Island, Massachusetts

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.0 feet
— High emissions: 1.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.3 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.6 feet
— High emissions: 2.2 feet

Skyline views of a city.

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New York City

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 1.0 feet
— High emissions: 1.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.2 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.6 feet
— High emissions: 2.1 feet

A group of boats docked in a harbor.

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Newport, Rhode Island

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 1.0 feet
— High emissions: 1.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.2 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.5 feet
— High emissions: 2.1 feet

A row of houses on a beach next to the ocean.

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Pensacola, Florida

– NOAA Region: Eastern Gulf
– Low sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.8 feet
— High emissions: 1.0 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.0 feet
— High emissions: 1.3 feet

– High sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.4 feet
— High emissions: 1.9 feet

A row of brick buildings on a cobblestone street.

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Philadelphia

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.0 feet
— High emissions: 1.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.2 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.6 feet
— High emissions: 2.1 feet

A sailboat floating on the water near a pier.

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Port Angeles, Washington

– NOAA Region: Northwest
– Low sea level rise scenarios:
— With low emissions: 0.0 feet
— Medium emissions: 0.1 feet
— High emissions: 0.2 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.2 feet
— Medium emissions: 0.4 feet
— High emissions: 0.6 feet

– High sea level rise scenarios:
— With low emissions: 0.5 feet
— Medium emissions: 0.8 feet
— High emissions: 1.2 feet

A beach with a pier in the background.

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Port Orford, Oregon

– NOAA Region: Northwest
– Low sea level rise scenarios:
— With low emissions: 0.2 feet
— Medium emissions: 0.2 feet
— High emissions: 0.4 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.4 feet
— Medium emissions: 0.5 feet
— High emissions: 0.8 feet

– High sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 1.0 feet
— High emissions: 1.5 feet

Buildings along the river in a sunset.

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Portland, Maine

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.5 feet
— Medium emissions: 0.8 feet
— High emissions: 1.1 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.1 feet
— High emissions: 1.4 feet

– High sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.3 feet
— High emissions: 1.9 feet

A city skyline with a river in the foreground and clouds in the background.

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Providence, Rhode Island

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.9 feet
— High emissions: 1.2 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.2 feet
— High emissions: 1.5 feet

– High sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.5 feet
— High emissions: 2.0 feet

A view of a city from across the water.

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San Diego

– NOAA Region: Southwest
– Low sea level rise scenarios:
— With low emissions: 0.4 feet
— Medium emissions: 0.5 feet
— High emissions: 0.6 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 0.8 feet
— High emissions: 1.0 feet

– High sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.3 feet
— High emissions: 1.7 feet

A view of a park in the foreground, a city skyline visible in the distance.

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San Francisco

– NOAA Region: Southwest
– Low sea level rise scenarios:
— With low emissions: 0.4 feet
— Medium emissions: 0.5 feet
— High emissions: 0.6 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.8 feet
— High emissions: 1.0 feet

– High sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.2 feet
— High emissions: 1.7 feet

A beach with palm trees and mountains in the background.

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Santa Barbara, California

– NOAA Region: Southwest
– Low sea level rise scenarios:
— With low emissions: 0.2 feet
— Medium emissions: 0.3 feet
— High emissions: 0.4 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.4 feet
— Medium emissions: 0.6 feet
— High emissions: 0.8 feet

– High sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 1.0 feet
— High emissions: 1.5 feet

A view of a beach and buildings in the background.

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Santa Monica, California

– NOAA Region: Southwest
– Low sea level rise scenarios:
— With low emissions: 0.3 feet
— Medium emissions: 0.4 feet
— High emissions: 0.5 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.5 feet
— Medium emissions: 0.7 feet
— High emissions: 0.9 feet

– High sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.1 feet
— High emissions: 1.6 feet

An aerial view of a tall tower and city skyline.

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Seattle

– NOAA Region: Northwest
– Low sea level rise scenarios:
— With low emissions: 0.4 feet
— Medium emissions: 0.4 feet
— High emissions: 0.6 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.6 feet
— Medium emissions: 0.7 feet
— High emissions: 0.9 feet

– High sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.1 feet
— High emissions: 1.6 feet

A marina with palm trees in the foreground.

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St. Petersburg, Tampa Bay, Florida

– NOAA Region: Eastern Gulf
– Low sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 0.9 feet
— High emissions: 1.0 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.4 feet

– High sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.5 feet
— High emissions: 2.0 feet

A harbor with boats docked in front of a mountain.

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Unalaska, Alaska

– NOAA Region: National
– Low sea level rise scenarios:
— With low emissions: -0.5 feet
— Medium emissions: -0.4 feet
— High emissions: -0.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: -0.3 feet
— Medium emissions: -0.1 feet
— High emissions: 0.2 feet

– High sea level rise scenarios:
— With low emissions: 0.0 feet
— Medium emissions: 0.4 feet
— High emissions: 0.9 feet

A tall white obelisk.

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Washington D.C.

– NOAA Region: Northeast
– Low sea level rise scenarios:
— With low emissions: 0.8 feet
— Medium emissions: 1.0 feet
— High emissions: 1.3 feet

– Intermediate sea level rise scenarios:
— With low emissions: 1.0 feet
— Medium emissions: 1.3 feet
— High emissions: 1.6 feet

– High sea level rise scenarios:
— With low emissions: 1.2 feet
— Medium emissions: 1.6 feet
— High emissions: 2.1 feet

A large building sitting next to a body of water at sunset.

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Wilmington, North Carolina

– NOAA Region: Southeast
– Low sea level rise scenarios:
— With low emissions: 0.7 feet
— Medium emissions: 0.9 feet
— High emissions: 1.1 feet

– Intermediate sea level rise scenarios:
— With low emissions: 0.9 feet
— Medium emissions: 1.1 feet
— High emissions: 1.4 feet

– High sea level rise scenarios:
— With low emissions: 1.1 feet
— Medium emissions: 1.5 feet
— High emissions: 2.0 feet

Data reporting by Emma Rubin. Story editing by Ashleigh Graf. Copy editing by Tim Bruns. Photo selection by Ania Antecka.