The map below shows areas of the Texas, Louisiana, Mississippi and Alabama
coastlines that would be flooded at various stages of sea level rise. You can select
a value of sea level rise using the dropdown box in the upper left corner of the
map. The navigation buttons can
be used to zoom in/out and pan across the map.
The map clearly shows that a sea level rise of only a few meters would inundate
thousands of acres of highly developed land, beach communities and habitat along
the Gulf Coast. If you zoom in on New Orleans, Morgan City, Lake Charles, Port
Arthur, Mobile, Galveston, Freeport or other areas you can see communities,
railroads, ports, factories, refineries and other types of land use that will be
under water. The United States Gulf coast will be one of the hardest areas
hit if sea level rise associated with global warming continues.
This map is not a carefully
surveyed and extremely accurate presentation. It is intended to provide a visual impression of which geographic areas might be
flooded if global warming and climate change continue unabated.
This sea level rise map was created by Alex Tingle
of firetree.net using the Google Maps API, NASA data and lots of programming savvy.
He explains how the map was created, the sea level data and issues about map
We thank Alex for allowing us to share this map on Geology.com. Also thanks to Google and NASA for providing
the resources needed to make this map.