BCAN continues to document the increasing frequency of flooding in Boston due to sea level rise. This is especially noticeable at “king tide” events, the next of which is upcoming on Sunday November 15th. And this is only just the beginning. These coastline maps demonstrate the city’s vulnerability over the next several decades. Move the arrows to observe how the city is impacted.
The map on the left-most side of the slide projects the high tides around the coastline of Boston in the 2030s, with 9 inches of sea level rise due to increasing global temperatures. The lighter blue represents flooding of sea water into city neighborhoods. The map on the right-most side of the slide depicts high tides in the 2070s, after a projected 36 inches of sea level rise, and additionally a middle-of-the-road scenario for flooding in our streets from stormwater, shown in aqua green. The purple, red, and bright green colors show the places in the city where our most vulnerable populations reside–low income residents, people of color, and the elderly.
These images give you just a peek into what has become our reality here in Boston. King tide events—AKA perigean spring tides—are not going away any time soon. We will see more and more of these flooding events in our city, and as the maps show, they will get worse and worse, especially for our most vulnerable and under-resourced communities. We must take bold and aggressive climate action now to protect our coastal neighborhoods and forestall the impact of climate change.
The City of Boston has a great tool for finding the projected flooding for any address in the City. To learn more about anticipated flooding in your neighborhood and at the places you like to visit, go to https://www.boston.gov/departments/environment/climate-ready-boston-map-explorer.