--- title: Climate Change: New York at Greater Risk of Flooding description: Flood risk in New York City has increased in recent decades due to human-caused sea level rise and the surge that occurs during storms canonical: https://time.com/4052691/new-york-city-flood-risk-rising/ author: Justin Worland article:opinion: false article:content_tier: free article:published_time: 2015-09-28T20:36:04.000Z article:modified_time: 2026-08-04T07:57:38.504Z article:section: Science og:title: Why New York City Flood Risk Is On The Rise og:description: Climate change threatens to exacerbate the risk storms pose to the city og:url: https://time.com/4052691/new-york-city-flood-risk-rising/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde61bea64d25008a/698865d7bc6cfc2ec43d9a47/storm-new-york-city.jpeg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 5616 og:image:height: 3159 og:image:alt: storm new york city og:type: article twitter:card: summary_large_image twitter:title: Why New York City Flood Risk Is On The Rise twitter:description: Climate change threatens to exacerbate the risk storms pose to the city twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde61bea64d25008a/698865d7bc6cfc2ec43d9a47/storm-new-york-city.jpeg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # Why New York City Will Be Flooded More Often > Sponsored content. 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It reaches 40,000 subscribers with a 34.2% open rate and a 2.1% click rate as of August 2026. #### Where can I follow the energy transition as a business story? Future Proof covers climate and energy as an economic and business story rather than only an environmental one. It publishes every Friday and is free at time.com/newsletters. #### Who writes Future Proof? Justin Worland, a senior correspondent at TIME and an award-winning climate journalist, writes Future Proof. #### Is Future Proof free? Yes. Future Proof is free at time.com/newsletters. ## Video: Hurricane Katrina By The Numbers: Ten Years Later [Watch (HLS stream): Hurricane Katrina By The Numbers: Ten Years Later](https://cdn.jwplayer.com/manifests/APBC75ye.m3u8) (2:07)  _Published 2015-08-22. Hurricane Katrina By The Numbers: Ten Years Later_  by [Justin Worland](https://time.com/author/justin-worland/)  ## Justin Worland Senior Correspondent Sep 28, 2015 8:36 PM UTC  dramatic storm clouds over Manhattan dramatic storm clouds over Manhattan Getty Images  by [Justin Worland](https://time.com/author/justin-worland/)  ## Justin Worland Senior Correspondent Sep 28, 2015 8:36 PM UTC Flood risk in New York City has increased in recent decades due to human-caused sea level rise and the related storm surge that occurs during cyclones, according to a new [study](//www.pnas.org/cgi/doi/10.1073/pnas.1513127112). Climate change threatens to exacerbate the risk storms pose to the largest city in the United States. Researchers, writing in the journal _PNAS_, evaluated sediment at different points along the shore in New Jersey to compare sea levels between 1970 and 2005 and sea levels between 850 and 1800\. Prior to 1800, a flood that was 2.25 m (7.4 ft) above sea level occurred once every 500 years. Since 1970, a storm of that size occurs approximately every 24 years. “This is going from something you probably won’t see in your lifetime to something you may see several times in your lifetime,” said Andra Reed, a researcher at Penn State University. Sea levels rose slightly between 850 and 1800 due to natural causes that include melting glaciers, according to Reed. Scientists have shown such changes to be part of the natural variation in sea levels. But the rate of rise pales in comparison to recent decades, when sea levels have risen by 2 millimeters (.08 inches) per year on average. Nearly 90% of that rise has been the result of human activity, [research](http://blogs.agu.org/geospace/2014/05/15/humans-caused-nearly-90-percent-sea-level-rise-warming-upper-ocean-study-says/) has shown. **Read More:** [These Are the Cities Most Vulnerable to the Next Katrina](http://time.com/4012208/katrina-cities-flood-risk/) Potential for disaster increases when rising sea levels combine with stronger storm surges, also a product of human caused climate change. Storm surge occurs when water levels temporarily rise during a storm and weather conditions push that water ashore. The study, which comes just a month before the three-year anniversary of Hurricane Sandy, adds to evidence showing the importance of investments in disaster preparedness. Sandy killed more than 200 and caused $75 billion in damage. That storm would have been a once-in-3,000 year event a few centuries ago, but today it’s once in 130-year storm, according to Reed. “These flood heights are recurring more frequently,” said Reed. “That really does call for advanced risk management strategies.” ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4052691/new-york-city-flood-risk-rising/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4052691/new-york-city-flood-risk-rising/"},"headline":"Why New York City Will Be Flooded More Often","datePublished":"2015-09-28T20:36:04.000Z","dateModified":"2026-08-04T07:57:38.504Z","description":"Rising sea levels due to climate change is a big threat, research shows","url":"https://time.com/4052691/new-york-city-flood-risk-rising/","keywords":["climate change"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/bltde61bea64d25008a/698865d7bc6cfc2ec43d9a47/storm-new-york-city.jpeg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Justin Worland","jobTitle":"Senior Correspondent","url":"https://time.com/author/justin-worland/"}],"articleSection":"Science","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/bltde61bea64d25008a/698865d7bc6cfc2ec43d9a47/storm-new-york-city.jpeg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"storm new york city","caption":"storm new york city","creditText":"Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/science/","name":"Science"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/climate-change/","name":"climate change"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/4052691/new-york-city-flood-risk-rising/","name":"Why New York City Will Be Flooded More Often"}}]},{"@context":"https://schema.org","@type":"VideoObject","name":"Hurricane Katrina By The Numbers: Ten Years Later","description":"Hurricane Katrina By The Numbers: Ten Years Later","thumbnailUrl":"https://cdn.jwplayer.com/v2/media/APBC75ye/poster.jpg?width=720","uploadDate":"2015-08-22T20:57:15.000Z","contentUrl":"https://cdn.jwplayer.com/manifests/APBC75ye.m3u8","embedUrl":"https://time.com/4052691/new-york-city-flood-risk-rising/","duration":"PT2M7S","potentialAction":{"@type":"SeekToAction","target":"https://time.com/4052691/new-york-city-flood-risk-rising/?jw_start={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"}}] ```