The US Geological Survey has an online tool for those of us near the coasts—about 40% of us in the United States, in other words. The Coastal Change Hazards Portal lets you see the changes that might take place—and some that have already happened—as a result of coastal erosion, storms, and sea level rise.
Coasts are always moving and reshaping themselves, of course, and the portal maps small changes incremental changes as well as large ones. It can show you where the shoreline was a century ago and predict where it might be in the future.
A video tutorial walks you through the portal’s basic functions, including how to save various scenarios you create and how to share your results with others. The portal is available at http://marine.usgs.gov/coastalchangehazardsportal/.
The USGS Coastal Change Hazards Portal is a collaborative project between the USGS Coastal and Marine Geology Program and the USGS Center for Integrated Data Analytics. For another online tool that shows coastal changes, see NOAA’s Digital Coast here or read about it here.