The well known environmental group, Sierra Club, is ready to make waves to maintain the waves along five piers at the planned Brooklyn Bridge Park. The points of controversy include wave-calming systems and floating walkways. They’re convinced that these additions to the 85 acre park will be harmful to local marine life. The New York State subsidiary managing the project insists that these additions are necessary to lure new boaters and establish a fancy marina. One would think that fish and other marine life could be safely diverted away from this development area. Perhaps the Sierra Club might find a solution that benefits both fish and New Yorkers instead of damning the entire idea.