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. 

Georgetown University has created an Adaptation Tool kit but, as sea level rise expert John Englander points out, retreat may become a necessity. Flood iQ has a fascinating site where you can search your flood risk by address.

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.





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 –…


Mending Coastal Marshes

By Kerry Rose Graning      1/20/20   
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  1/10/20   
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…