Before you do anything else, you might want to explore coastal areas threatened by sea level rise…



NASA says that seas have risen since 1992 by 3 inches, with some locations rising more than 9 inches, and anticipates an unavoidable rise of several feet in the future.

Caused by four main factors, of which two are global (ice melting and warming waters that expand) and two are local (a slowing Gulf Stream and sinking land), the amount and speed of sea level rise varies by location.

The consequences are staggering, creating more dangerous and powerful hurricanes and storm surges, and resulting in more intense and frequent flooding, and devastation to coastal communities. In the United States, almost 40 percent of the population live in relatively high-population-density coastal areas, where sea level plays a role in flooding, shoreline erosion, and hazards from storms. You might be surprised to learn of the creation of ghost forests. 

You might also want to watch a 4-part PBS series Sinking Cities which takes a look into how four cities (Miami, London, Tokyo, & New York) — all at particular risk — are adapting.

Flood Factor has a fascinating site where you can explore your flood risk by entering an address.




U.S. high tide flooding breaks records in multiple locations

Coastal communities in three locations along the Atlantic and Pacific coasts saw record high tide flooding last year — a trend that is expected to continue into 2023 and beyond without improved flood defenses, according…

What is high tide flooding?

As relative sea level rises, it no longer takes a strong storm or a hurricane to cause coastal flooding. High tide flooding occurs when sea level rise combines with local factors to push water levels…

Sea Level Latest Measurements

Sea level rise is caused primarily by two factors related to global warming: the added water from melting ice sheets and glaciers and the expansion of seawater as it warms. The first graph tracks the…

Weather Report: Why Do the Seas Rise?

The phrases “climate change” and “sea level rise” nearly go hand in hand, particularly when discussed in coastal communities like Martha’s Vineyard. Many of the cliché images of global warming often involve the seas, whether…

Sea Level Trends

The sea level trends measured by tide gauges that are presented here are local relative sea level (RSL) trends as opposed to the global sea level trend. Tide gauge measurements are made with respect to…

Interactive map: How has local sea level in the United States changed over time?

Global sea level has risen between 6 and 8 inches (15-20 cm) over the last 100 years. About one third of the increase is due to the thermal expansion of ocean water as it has…

State Of The Beach Report

Greta is known for her famous speeches before world leaders. She recently spoke at COP 26 where delegates from around the world are charged with fulfilling goals of the Paris Agreement and the UN Framework…

Animation: Global Sea Level Change (1992-2017)

This animation shows how global sea levels have risen more than 80 millimeters (3.15 inches) over the past three decades, which is like covering the U.S. in about 4 meters (about 13 feet) of water…

Global Climate Change Vital Facts

Sea level rise is caused primarily by two factors related to global warming: the added water from melting ice sheets and glaciers and the expansion of seawater as it warms. The first graph tracks the…

Coming Storms: Climate Change And The Rising Threat To America’s Coastal Seniors

A new Climate Central sea-level-rise analysis identifies the assisted living and nursing homes at risk in five states. Experts say waiting to evacuate during storms is not the answer.

Science Empowering Communities In The Face Of Flooding

Surging Waters: Science Empowering Communities in the Face of Flooding is a report produced by AGU, a global not-for-profit scientific society dedicated to advancing the Earth and space sciences for the benefit of humanity.

Storm Surge Inundation Map

This story map illustrates historical hurricane tracks, strike frequency, and potential areas of coastal flooding and inundation from storms by combining the National Hurricane Center’s (NHC’s) hurricane strike dataset.

What is Digital Coast?

This NOAA-sponsored website is focused on helping communities address coastal issues and has become one of the most-used resources in the coastal management community. The dynamic Digital Coast Partnership, whose members represent the website’s primary…

Association of State Floodplain Managers

The mission of ASFPM is to promote education, policies and activities that mitigate current and future losses, costs and human suffering caused by flooding, and to protect the natural and beneficial functions of floodplains -…

Sea Level Rise Adaptation

Sea level rise is a slow-moving threat, but it demands immediate action. Global heating creates extreme hazards that cause significant harm to people, homes, infrastructure, and the environment. In California, we are already facing many…

The Great Flood of 2019: A Complete Picture of a Slow-Motion Disaster

This year’s flooding across the Midwest and the South affected nearly 14 million people, yet the full scale of the slowly unfolding disaster has been difficult to fathom. To visualize just how extensive it was,…

Going under: Long wait times for post-flood buyouts leave homeowners underwater

By the end of this century, as many as 13 million people in the United States will see their homes affected by sea level rise. Millions more who live, work, or travel through coastal or…

Understanding FEMA Flood Maps and Limitations

Flooding in the United States (U.S.) has cost over $1 trillion in inflation adjusted dollars since 1980 and represents more than 63% of the cost associated with all billion dollar or more natural disasters.1 It…

People truly need to understand the causes of sea level rise and the impact it has on our communities. By working together, we can develop smart solutions to protect against this ever-growing problem. Our communities can make…

Flood IQ

Flood iQ covers the East coast and the Gulf coast, and visualizes your risk of sea level rise flooding today and up to 15 years in the future. It is a web based application created…

NASA – Sea level change

Find a ton of information here on sea level, including news & features, a data analysis tool, a virtual earth system laboratory, and more.

Sea Level Rise Project

Climate Central's flagship sea level project allows you to search or navigate interactive maps to see areas below different amounts of sea level rise and flooding — down to neighborhood scale — matched with area timelines of…


Most California cities refuse to retreat from rising seas. One town wants to show how it’s done

By Rosanna Xia  Photo by Robert Gauthier   02/24/20  
Ten miles north of Monterey and a world away from Santa Cruz, Bruce Delgado gazed up a towering sand dune. Careful not to step on the beach buckwheat that protects rare butterflies or the sea…

What Rising Seas Mean for San Francisco

By Jill Cowan  Photo by Chang W. Lee   02/19/20  
How the Bay Area is confronting climate change.

Mending Coastal Marshes

By Kerry Rose Graning   01/20/20  
When Nicole Waguespack describes the Louisiana coastline, she thinks back to the early 1980s. In her memories, she’s still a little girl standing in the hot sun on the bank of a small canal near…

King Tides: A Story of the Moon, Sun and Sea

By Danielle Venton  Photo by Sarah Craig   01/10/20  
A sunny walk along San Francisco's Embarcadero is about as nice as it gets, with the waterside promenade framed by a stunning view of the Bay Bridge. Strolling day trippers can also visit much-loved city…

Floods predicted to uproot 50 million people a year as climate heats up

Population growth, more intense rainfall and melting ice are likely to cause more frequent and severe floods, researchers warned on Tuesday.

How coastal communities can prepare for the challenges of storms and rising seas

Major coastal storms commonly kill hundreds of people and wreck homes, businesses and communities. The three major storms in 2017 – Hurricanes Harvey, Irma, and Maria – generated some $265 billion in damages and over…

Venice floods: Climate change behind highest tide in 50 years, says mayor

A state of disaster is declared as the Italian city is hit with a high tide of more than 1.87m.

Storms and Rising Seas Threaten Coastal Ecosystems — Here’s What We Can Do

By Jeff PetersonA century from now, the U.S. coastline will look very different from how it looks today. In the coming decades our beaches, wetlands and...

Sea Level Rise Is Locked in Even If We Meet Paris Agreement Targets, New Study​ Says

Sea level rise will change the landscape of coastlines and challenge our ability to adapt over the next couple of centuries, even if all the 2030...

Scientists looked at sea levels 125,000 years in the past. The results are terrifying

By Fiona Hibbert, Eelco Rohling and Katharine Grant  Photo: Australian Antarctic Division   11/06/19  
Sea levels rose 10 metres above present levels during Earth’s last warm period 125,000 years ago, according to new research that offers a glimpse of what may happen under our current climate change trajectory.

Climate Groups Hope Virginia’s Rapidly Rising Sea Levels Will Motivate Young Voters

Millions of Virginians are threatened by sea level rise, and climate change groups are working hard to elect Democrats who will combat the issue. ...

300 Million People Worldwide Could Suffer Yearly Flooding by 2050

Sea level rise could impact three times more people worldwide than previously estimated, new research published in Nature Communications Tuesday has found.NoneIf greenhouse gas emissions are...

Rising Seas Will Erase More Cities by 2050, New Research Shows

By Denise Lu and Christopher Flavelle   10/29/19  
Rising seas could affect three times more people by 2050 than previously thought, according to new research, threatening to all but erase some of the world’s great coastal cities.

Sunny Day Flooding

With Hurricane Dorian threatening in late August 2019, we investigate the climate crisis in Norfolk, Virginia -- site of the largest Naval base in the world and vital to US national security. Norfolk is also…

Report: Flooded Future: Global vulnerability to sea level rise worse than previously understoodSLR

Flooding in Jakarta, Indonesia, February 2017. Source: World Meteorological Organization / Flickr New elevation data show that by midcentury frequent coastal flooding will rise higher than areas currently home to hundreds of millions of people EXECUTIVE…

Rising Seas Threaten Low-Lying Coastal Cities, 10% of World Population

In a new report, CIESIN researchers help to identify urban populations at risk from sea level rise. Their updated data set is meant to inform adaptation strategies. ...

Should New York Build a Storm Surge Barrier?

A recent event at Columbia University debated the pros and cons. ...

A flood of new construction: Will you tap into the $400B seawall pipeline?

By Jenn Goodman  Photo: U.S. Army Corps of Engineers   10/16/19  
The cost of combating sea level rise over the next 20 years will require as much as $400 billion in new construction, and some U.S. communities are already bidding out projects.

Pacific Islands look for unity and solutions to sea level rise at UN

Pacific Island government officials were in New York for the United Nations session and environmental conferences last month, looking for unity and solutions to climate change and the sea level rise which threatens their existence....

Successful Ocean-Monitoring Satellite Mission Ends

The Jason-2/Ocean Surface Topography Mission (OSTM), the third in a U.S.-European series of satellite missions designed to measure sea surface height, successfully ended its science mission on Oct. 1.

Four takeaways on climate change and sea level rise in the latest IPCC report

The Intergovernmental Panel on Climate Change has published yet another alarming report about the dangers we face from the climate crisis. The Special Report on the Ocean and Cryosphere in a Changing Climate synthesizes the…

Building a better algorithm to predict flood risk in the age of climate change

Photo by Tegan Wendland   09/30/19  
It's dusk in Charleston, South Carolina, and Sharai Lewis-Gruss slides on waders and sloshes into a deep puddle on the side of the road.

Meet the 3 Climate Scientists Named MacArthur ‘Genius Grant’ Fellows

By Bob Berwyn  Photo: John D. & Catherine T. MacArthur Foundation   09/29/19  
Their research is helping answer existential questions of our time: How much will sea level rise, how fast, and what will be the impact on human civilizations?

Center for Climate and Life Fellow Explains IPCC Sea Level Warning

Pierre Dutrieux, a Lamont-Doherty oceanographer and 2019 Climate and Life Fellow, discusses his Antarctic research and what the new IPCC report says about sea level rise. ...

‘No state in the country is spared’ from f‘No state in the country is spared’ from flooding risks, new report sayslooding risks, new report says

By Nina Pullano  Photo by National Geographic   09/25/19  
The United States is getting wetter, and people across the country, from local government officials to scientists, all need to help communities prepare for an uptick in flooding, a new report says.

Could Massive Storm Surge Barriers End the Hudson River’s Revival?

On a sunny afternoon, John Lipscomb steered the 22-foot vessel Ian Fletcher past the rip-rapped, industrialized shoreline of South Brooklyn and into the vastness of New York Harbor, where the Hudson River meets the sea.

We built environmentally friendly sea walls from coconut husk. Here’s what we learned

By Susanna Nurdjaman  Photo: Susanna Nurdjaman   09/05/19  
Coastal protection is supposed to be one of the priorities in climate change mitigation.

‘Bigger picture, it’s climate change’: Great Lakes flood ravages homes and roads

By Tom Perkins  Photo by Colter Peterson/AP   09/03/19  
Depths of lakes that hold about 90% of US’s freshwater spiking to record levels, from 14in to nearly 3ft above long-term averages

Team Deciphers Sea-Level Rise From Last Time Earth’s CO2 Was as High as Today

In a coastal cave off Spain, scientists have found evidence showing that more than 3 million years ago, when temperatures were similar to those projected for the end of this century, sea levels were as…

Retreating from Rising Seas Isn’t a Win or a Defeat — It’s Reality – Salon

By John Englander   08/28/19  
Indonesia has announced that it will move its capital to Borneo as its current capital, Jakarta, is sinking into the sea. Jakarta is estimated to lose 95% of its land over the next 30 years.…

Move Away From Coastal Areas While You Still Can, Scientists Sound Warning On Climate Change

By Rohit R Nair  Photo by jonathansloane/Getty   08/26/19  
A team of scientists has urged people to retreat from the coastal areas while they still can in order to move out of harm’s way, rather than being forced to move after disasters triggered by…

Summer on the Swollen Great Lakes

The lakes rose this year to levels not seen in decades. A 1,234-mile drive around one of them revealed what all that water has left behind — vanishing beaches, closed roads, new islands.

How to Rebound After a Disaster: Move, Don’t Rebuild, Research Suggests

By Kendra Pierre-Louis  Karsten Moran   08/22/19  
What should communities do as climate change escalates threats like sea-level rise? Until now, much of the focus has been on disaster response, with very little discussion of orderly, strategic retreat from areas at risk.…

One way or another the deluge is coming- A world without beaches

The ocean covers 70.8% of the Earth’s surface. That share is creeping up. Averaged across the globe, sea levels are 20cm higher today than they were before people began suffusing the atmosphere with greenhouse gases…

Climate change could trigger drastic swings in Great Lakes water levels

“Our real message is the high variability should be what we’re planning and making changes on,” said Richard B. Rood, a professor in the University of Michigan's Department of Climate and Space Sciences and Engineering....

Wet, wild and high: lakes and rivers wreak havoc across Midwest, South

"Water, water everywhere." That line from poet Samuel Taylor Coleridge could be the mantra for rain-weary residents across the country. ...

Rising water stress could counteract ‘global greening’, study says

The increased growth rate of plants seen worldwide in response to rising CO2 levels – a phenomenon known as “global greening” – could be stalled by growing water stress, a study finds. Global warming is driving…

How the 5 riskiest U.S. cities for coastal flooding are preparing for rising tides

By Mary Caperton Morton  Photo: tovfla/iStock Unreleased/Getty images plus   08/06/19  
The five U.S. cities most at risk from coastal flooding have begun to make plans for adapting to rising sea levels. Some are further along than others.

With nowhere to hide from rising seas, Boston prepares for a wetter future

By Mary Caperton Morton  Photo by DAVID L. RYAN   08/06/19  
Boston dodged a disaster in 2012. After Hurricane Sandy devastated parts of New Jersey and New York, the superstorm hit Boston near low tide, causing minimal damage. If Sandy had arrived four hours earlier, many…

What you need to know about the link between sea-level rise and coastal flooding

By Jan Ellen Spiegel   08/06/19  
Whether it's called 'high-tide' flooding, 'sunny day,' or 'nuisance' flooding, the problem is getting worse in many coastal communities.

Editorial: Measuring the costs of preparing for rising seas

Photo by Daniel Johnson   07/14/19  
A new report estimates the costs of seawalls. They’re not a good fit for Puget Sound, but what is?

One of Antarctica’s biggest glaciers will soon reach a point of irreversible melting. That would cause sea levels to rise at least 1.6 feet.

By Aylin Woodward   07/10/19  
Antarctica's glaciers are melting at unprecedented rates. This rapid ice loss contributes to rising sea-levels.

High-Tide Flooding On The Rise, Especially Along The East Coast, Forecasters Warn

By Rebecca Hersher  Photo by Wilfredo Lee/AP   07/10/19  
Sea levels are rising, and that is sending more ocean water into streets, sewers and homes. For people who live and work in coastal communities, that means more otherwise-sunny days disrupted by flooding.

Antarctic Glacial Melt May Be Irreversible Causing Sea Rise, Research Says

A glacier the size of Florida is melting much faster than expected and may soon trigger a 50cm, or 19.6 inches, rise in sea level, according to a new NASA-funded study published online by the…

Coastal retreat ‘not a crazy idea’ — study

By Daniel Cusick  Photo by Oscar Sanchez   07/09/19  
Home buyouts are becoming more common in flood-prone communities across the country. But the strategy has garnered little interest in oceanfront cities and towns, even as they face rising risks of flooding in a warmer…

Staying above water

A shocking report was released last June by top climate scientists warning that sea level rise could reach seven feet by 2100, more than double what was previously thought.

The Next Wave of Climate Refugees

By Emily Buder  Video by Lisa Hornak and Erin Stone   06/17/19  
“We were so terrified with the water coming into the house and the sound of the storm. In front of my eyes, the walls of our house collapsed.” That’s Geeta Maiti, a resident of Mousuni…

Temperatures leap 40 degrees above normal as the Arctic Ocean and Greenland ice sheet see record June melting

By Jason Samenow  Photo: Steffen Olsen   06/14/19  
And it may be messing with our weather.

Sea level rise may double forecast for 2100

Scientists say global sea level rise could far exceed predictions because of faster melting in Greenland and Antarctica. The post Sea level rise may double forecast for 2100 appeared first on Climate News Network.

At Baltimore’s National Aquarium, Climate Change Presents Challenges Inside And Out

By Dana Cronin  Photo by Claire Harbage/NPR   05/05/19  
Three years ago, the National Aquarium in Baltimore made a big announcement. After a public backlash against marine animal parks brought on by the documentary Blackfish, the aquarium decided to move its prized pod of…