Climate Change, Coastal Flooding, and Environmental Justice in Urban Boston Communities
This project examined the vulnerability of two urban, environmental justice communities in metropolitan Boston to the effects of coastal flooding. Through visualization tools and workshops, the project team engaged residents on climate change impacts and worked to identify feasible adaptation options.
Higher temperatures and melting sea ice are projected to increase sea level rise along the Northeast coast of the United States; these impacts, in combination with increasing frequency and severity of storms, will cause devastating flooding in coastal communities. Resulting effects include habitat loss, erosion, saltwater intrusion and salinization of groundwater, and infrastructure damage. This project, funded through NOAA’s Sectoral Applications Research Program, examined possible flooding impacts to and the adaptive capacity and potential responses of two communities in urban Boston – East Boston and Everett. Both are classified as environmental justice communities by the Massachusetts Executive Office of Energy and Environmental Affairs and contain a mix of immigrants and minorities, many of whom live in depressed conditions. These two communities were selected because they had been identified as vulnerable to coastal flooding in previous research efforts by the project team.
The project team worked on the Northeast Climate Impacts Assessment, a broad collaboration between the Union of Concerned Scientists and over 50 different experts from various institutions in the region; the team specifically focused on the effects of coastal flooding due to climate change, which was used to inform this two-year project.
East Boston and Everett are expected to experience the effects of coastal flooding differently; in the former, residential areas are more prone to flooding while in the latter, commercial and industrial areas are more vulnerable. Maps were created at 2030, 2050, and 2070 using sea level rise projections by Vermeer and Rahmstorf (2009). Three workshops were held in each community between 2009 and 2010, supported by the Neighborhood of Affordable Housing (NOAH) and others.
At the first workshop, project leads solicited participants’ existing knowledge about climate change.
Results: Twenty-six residents attended the East Boston workshop and thirty attended the Everett meeting. Based on the knowledge discussion, it became apparent that participants generally had more information on the impacts rather than the causes of climate change.
The second workshop focused on analysis of the results from the first workshop and included scientific presentations about climate change. After presenting the maps that were developed, participants discussed possible adaptation options, including no action, protection, accommodation, and retreat.
Results: At the East Boston meeting, no action and retreat were immediately deemed to be unacceptable solutions. Building sea walls were identified as possible protection options but participants were concerned about both cost and accessibility; they were not willing to sacrifice access to and use of the coast. At the Everett meeting, adaptation options were also addressed but there was limited discussion as the flooding would primarily affect commercial and industrial buildings, not residential properties. Discussion instead focused on possible effects on transportation, pollution, and the economy.
At the final workshop, barriers and incentives to adaptation were discussed, along with specific adaptation options. For example, the project team presented visualizations of different options to East Boston residents, including a modular sea wall.
Results: In East Boston, the discussion focused on evacuation routes and centers (both of which are projected to be flooded in the future under all emission scenarios), floodproofing, retreat, and the sea wall visualization. Participants generally supported natural approaches (e.g., beaches, wetlands) over shoreline hardening measures. In Everett, the discussions focused on the broader reach of flooding events, including potential damage to a food distribution center located in the area that ships to many areas throughout New England.
Outcomes and Conclusions
One of the most important lessons learned from the interactions with these communities was that existing knowledge and values need to be part of any adaptation planning framework. As such, education is key to empowerment and engaged decision making and community buy-in. In addition, planning needs to acknowledge uncertainty and other stressors such as land use and population growth. A parallel study was conducted for two urban communities in the Chesapeake Bay, Maryland.
The next steps are to continue to engage with the communities in order to see how impacts may manifest differently at different locations and to identify distributional effects on poorer communities. In addition, the project team plans to develop guidance specific to creating adaptation strategies for and with environmental justice communities.
Gregg, R.M. (2010). Climate Change, Coastal Flooding, and Environmental Justice in Urban Boston Communities [Case study on a project of the University of Massachusetts-Boston and Battelle]. Product of EcoAdapt’s State of Adaptation Program. Retrieved from CAKE: http://www.cakex.org/case-studies/climate-change-coastal-flooding-and-e… (Last updated June 2010).