Much of Boston Harbor is only about a food above normal high tide levels, putting 90 thousand residents and $80 billion worth of real estate at risk because sea levels are rising as polar ice melts in a warming planet.
Tourist walkway along the harbor
Rotterdam, Venice and New Orleans have already invested in building barriers against the rising seas levels which are already here, and Boston, along with New York City, is beginning serious planning with a 2050 completion date.
...a 2013 World Bank report ranked Boston as the eighth most vulnerable major city in the world to property damage from rising seas, among 136 studied.
Will the Trump administration waste all the lead time and funding to build a different wall for ideological reasons, and because it believes climate change is a hoax invented by Chinese officials to help sell their exports?