The speed river and the Grand river in the Cambridge area has a whole bunch of crap in it, no paper boats, no plastic figures but a whole bunch of crap like broken catch basins busted storm drain pipes, shopping carts, waste from factories, plastic bags, garbage, just about anything you can think of. I think maybe the Grand and the Credit could use some help, if a Hindu puts a little floating paper boat down the river I am sure it would not touch the level of toxicity in it. There are enough people puking in the rivers there and have been for almost a hundred years but there is not much sense in complaining about them because they look and act just like we do. maybe some of us work for them...