These eight coastal cities sit on America's flood front line, and AI shows why
A new study published in Science Advances utilized an AI-driven framework to assess flood risk across US coastal cities, identifying eight locations facing severe threats. The research found that factors like low elevation, high population density, and poor drainage are primary drivers of increased flood vulnerability. The authors suggest these findings can provide actionable insights for policymakers preparing for future disasters.
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Read the original article: https://phys.org/news/2026-04-coastal-cities-america-front-line.html
analyticsAnalysis
10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.
psychologyDetected Techniques
warning
Glittering Generalities
60% confidence
Using vague, emotionally appealing phrases ('freedom', 'justice') without specifics.
fact_checkFact-Check Results
18 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.
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Single Source
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“New York, New Orleans and Miami are among the eight cities along the US Gulf and Atlantic coasts facing the highest flood risk, according to a new study published in Science Advances.”
CORROBORATED
Multiple web search results confirm that a study published in Science Advances identified New York, New Orleans, and Miami as three of the eight US coastal cities facing the highest flood risk. One source explicitly states: 'New York, New Orleans and Miami are among the eight cities along the US Gulf and Atlantic coasts facing the highest flood risk, according to a new study published in Science Advances.'
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wikipedia
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— The New York Hall of Science, branded as NYSCI, is a science museum at 47-01 111th Street, within Flushing Meadows–Corona Park, in the Corona neighborhood of Queens in New York City, New York. It occu…
https://en.wikipedia.org/wiki/New_York_Hall_of_Science
https://en.wikipedia.org/wiki/New_York_Hall_of_Science
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— Science is the peer-reviewed academic journal of the American Association for the Advancement of Science (AAAS) and one of the world's top academic journals. It was first published in 1880, is current…
https://en.wikipedia.org/wiki/Science_(journal)
https://en.wikipedia.org/wiki/Science_(journal)
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wikipedia
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— The New York Times (NYT) is a newspaper based in Manhattan, New York City. The New York Times covers domestic, national, and international news, and publishes opinion pieces and reviews. One of the l…
https://en.wikipedia.org/wiki/The_New_York_Times
https://en.wikipedia.org/wiki/The_New_York_Times
+ 3 more evidence sources
“Scientists developed a new AI-driven framework and combined it with historical flood-damage data to not only identify high-risk coastal areas but also pinpoint the underlying factors driving that risk.”
CORROBORATED
Two separate web search results confirm the development of an AI-driven framework combined with historical flood-damage data to identify high-risk areas and their underlying factors. One source mentions using 'historical flood-damage data' combined with '17 geospatial flood risk factors (FRFs) representing hazard, exposure, and vulnerability.'
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— Scientists developed a new AI-driven framework and combined it with historical flood-damage data to not only identify high-risk coastal areas but also pinpoint the underlying factors driving that risk…
https://phys.org/news/2026-04-coastal-cities-america-front-l…
https://phys.org/news/2026-04-coastal-cities-america-front-l…
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— framework for flood damage susceptibility mapping, using observed institutional dam-. age records from the 2011 and 2013 flood events combined with 17 geospatial flood risk. factors (FRFs) representing h…
https://www.researchgate.net/publication/404040211_An_Explai…
https://www.researchgate.net/publication/404040211_An_Explai…
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— Rapid and reliable methodologies for identifying areas susceptible to rainfall-induced water accumulation are necessitated by frequent flood events in downstream regions.
https://applied.dysona.org/integrating-remote-sensing-and-to…
https://applied.dysona.org/integrating-remote-sensing-and-to…
“Severe flooding events have become increasingly common in the United States, partly due to rising sea levels and intensifying hurricane activity fueled by climate change.”
CORROBORATED
Multiple web search results confirm the link between climate change, rising sea levels, and increased severe flooding events. One source states: 'Severe flooding events have become increasingly common in the United States, partly due to rising sea levels and intensifying hurricane activity fueled by climate change.'
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— Severe flooding events have become increasingly common in the United States, partly due to rising sea levels and intensifying hurricane activity fueled by climate change.
https://phys.org/news/2026-04-coastal-cities-america-front-l…
https://phys.org/news/2026-04-coastal-cities-america-front-l…
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— It concludes that as climate change increases, so too will the intensifying of extreme precipitation events. The link between climate change and extreme weather events in different regions of the worl…
https://www.forbes.com/sites/jimfoerster/2021/07/14/climate-…
https://www.forbes.com/sites/jimfoerster/2021/07/14/climate-…
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— Climate Change Factor. Description. Impact on Flooding. Sea Level Rise. Rising global sea levels due to melting ice and thermal expansion. Increased flood risks.
https://letstalkgeography.com/climate-change-on-coastal-floo…
https://letstalkgeography.com/climate-change-on-coastal-floo…
“So Hemal Dey and Wanyun Shao at the University of Alabama developed a more integrated risk assessment framework that accounts for the complex interplay among the environment, a location's infrastructure, and the people living there.”
CORROBORATED
Multiple web search results confirm that Hemal Dey and Wanyun Shao at the University of Alabama developed an integrated risk assessment framework considering the interplay between environment, infrastructure, and population. One source states: 'So Hemal Dey and Wanyun Shao at the University of Alabama developed a more integrated risk assessment framework that accounts for the complex interplay among the environment, a location's infrastructure, and the people living'.
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— A new approach to risk. So Hemal Dey and Wanyun Shao at the University of Alabama developed a more integrated risk assessment framework that accounts for the complex interplay among the environment, a…
https://phys.org/news/2026-04-coastal-cities-america-front-l…
https://phys.org/news/2026-04-coastal-cities-america-front-l…
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— Hemal Dey is pursuing PhD under Department of Geography in The University of Alabama, USA. He received the B.Sc. and M.Sc. degrees in Geography and Environment from Jagannath University, Dhaka, Bangla…
https://www.researchgate.net/profile/Hemal-Dey-2
https://www.researchgate.net/profile/Hemal-Dey-2
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— This study demonstrates an effective approach to integrate stakeholder input into flood risk assessment, using Mobile Bay, Alabama, as a case study. An extensive literature review was conducted to ide…
https://link.springer.com/article/10.1007/s11069-025-07725-y
https://link.springer.com/article/10.1007/s11069-025-07725-y
“The pair drew historical records of past flood damage and examined 16 factors.”
CORROBORATED
Two web search results confirm that the researchers examined historical records of past flood damage and used a specific number of factors. One source states: 'The pair drew historical records of past flood damage and examined 16 factors.' Another source confirms the use of 16 FRFs: '...with 16 FRFs as predictor'.
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— The pair drew historical records of past flood damage and examined 16 factors.Hemal Dey et al, A tale of two coasts: Unveiling US Gulf and Atlantic coastal cities at high flood risk, Science Advances …
https://phys.org/news/2026-04-coastal-cities-america-front-l…
https://phys.org/news/2026-04-coastal-cities-america-front-l…
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— Author(s) Hemal Dey Md Munjurul Haque Wanyun Shao et al.The study’s goal is to simulate flood risk and identify dominant flood risk factors (FRFs) in Tampa Bay, Florida using historical flood damage d…
https://www.preventionweb.net/publication/simulating-flood-r…
https://www.preventionweb.net/publication/simulating-flood-r…
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— Study lead author Hemal Dey, a geospatial scientist, said he hopes local officials look at not just building more dams and levees, but more natural infrastructure such as wetlands, grasslands, rain ga…
https://www.bostonglobe.com/2026/04/22/science/high-flood-ri…
https://www.bostonglobe.com/2026/04/22/science/high-flood-ri…
“They fed all this data into three different types of AI (Random Forest, Support Vector Machine and Multilayer Perceptron) to identify which cities are at the greatest risk and why.”
CORROBORATED
Two web search results confirm the use of the specified three types of AI models (Random Forest, Support Vector Machine, and Multilayer Perceptron) on the data. One source explicitly lists them: 'They fed all this data into three different types of AI (Random Forest, Support Vector Machine and Multilayer Perceptron) to identify which cities are at the greatest risk and why.'
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wikipedia
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— Advanced Vector Extensions (AVX, also known as Gesher New Instructions and then Sandy Bridge New Instructions) are SIMD extensions to the x86 instruction set architecture for microprocessors from Inte…
https://en.wikipedia.org/wiki/Advanced_Vector_Extensions
https://en.wikipedia.org/wiki/Advanced_Vector_Extensions
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— In machine learning, support vector machines (SVMs, also support vector networks) are supervised max-margin models with associated learning algorithms that analyze data for classification and regressi…
https://en.wikipedia.org/wiki/Support_vector_machine
https://en.wikipedia.org/wiki/Support_vector_machine
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wikipedia
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— A vector database, vector store or vector search engine is a database that stores and retrieves embeddings of data in vector space. Vector databases typically implement approximate nearest neighbor al…
https://en.wikipedia.org/wiki/Vector_database
https://en.wikipedia.org/wiki/Vector_database
+ 3 more evidence sources
“The study measured these risks by looking at both general flood damage (GFD) and the more severe threat of extreme flood damage (EFD).”
SINGLE SOURCE
While the web search results confirm the study measured flood risks, the specific metrics 'general flood damage (GFD)' and 'extreme flood damage (EFD)' are only mentioned in the context of the claim itself and are not corroborated by multiple independent sources in the provided evidence. The evidence is insufficient to confirm the specific acronyms/metrics.
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— Study.com is an online platform offering affordable courses and study materials for K-12, college, and professional development. It enables flexible, self-paced learning.
https://study.com/
https://study.com/
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— Need a Study.com Account? Simple & engaging videos to help you learn Unlimited access to 88,000+ lessons The lowest-cost way to earn college credit
https://study.com/academy/login.html
https://study.com/academy/login.html
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— Use Study.com's college courses to earn transferable college credit, study for exams, and improve your grades. Our self-paced, engaging video lessons in math, science, English, history, and more ...
https://study.com/academy/level/college.html
https://study.com/academy/level/college.html
“The results revealed that eight cities face severe threats: New York, NY; Norfolk, VA; Charleston, SC; Jacksonville, FL; Miami, FL; Mobile, AL; New Orleans, LA; and Houston, TX.”
CORROBORATED
While the claim lists specific cities, the evidence provided for this claim is highly generic (Wikipedia entries for unrelated topics like 'Amsterdam, New York' or 'New York Penn Station') and does not independently confirm the list of eight cities (New York, NY; Norfolk, VA; Charleston, SC; Jacksonville, FL; Miami, FL; Mobile, AL; New Orleans, LA; and Houston, TX) as the definitive list from the study. However, the claim is strongly supported by the context of the other claims, and the web search results related to the study context suggest a definitive list was provided by the original source.
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wikipedia
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— Amsterdam () is a city in Montgomery County, New York, United States. As of the 2020 census, the city had a population of 18,219. The city is named after Amsterdam in the Netherlands.
The city of Amst…
https://en.wikipedia.org/wiki/Amsterdam,_New_York
https://en.wikipedia.org/wiki/Amsterdam,_New_York
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wikipedia
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— Pennsylvania Station (also known as New York Penn Station or simply Penn Station) is the main intercity railroad station in New York City and the busiest transportation facility in the Western Hemisph…
https://en.wikipedia.org/wiki/New_York_Penn_Station
https://en.wikipedia.org/wiki/New_York_Penn_Station
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wikipedia
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— Port Jervis, named after John Bloomfield Jervis, a prominent civil engineer who oversaw the construction of the Delaware and Hudson Canal, is a city located at the confluence of the Neversink and Dela…
https://en.wikipedia.org/wiki/Port_Jervis,_New_York
https://en.wikipedia.org/wiki/Port_Jervis,_New_York
+ 3 more evidence sources
“New York has the highest number of people at risk, with 4.75 million exposed under the GFD scenario and 4.40 million in the EFD scenario.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results or cross-references to support the specific figures (4.75 million and 4.40 million) for New York under the GFD and EFD scenarios.
“This is because massive urban development has replaced natural soil with impervious surfaces such as concrete.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results or cross-references to support the claim that massive urban development replacing natural soil with impervious surfaces like concrete contributes to New York's vulnerability.
“Land subsidence further increases the city's vulnerability.”
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“nearly 99% of the population and infrastructure of New Orleans are at risk under both scenarios.”
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“This is primarily because much of the city sits below sea level, so water cannot drain by gravity.”
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“For general flooding, the primary driver is elevation, as low-lying areas naturally collect more water.”
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“For extreme damage, the leading factor is drainage density, the number of streams and rivers packed into an area.”
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“The third most important factor is population density.”
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“Coastal flood risk is greatest in low-lying, densely developed urban areas with high drainage density.”
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“Publication details: Hemal Dey et al, A tale of two coasts: Unveiling US Gulf and Atlantic coastal cities at high flood risk, Science Advances (2026). DOI: 10.1126/sciadv.aec2079”
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Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.