The Gowanus Canal Conservancy held a public meeting in Carroll Gardens this week to unveil renderings for a park and esplanade that would run along the Gowanus canal. The project’s dubbed Sponge Park because planners hope it will help absorb some of the raw sewage that currently contaminates the canal during heavy rainfall. (Brownstoner believes oily runoff from the nearby Gowanus Expressway is another big problem.) The idea is that when the canal is finally......