Much of the same could be written about Oslo. Just this summer the city opened up a pretty big man made beach/bath in the middle of the harbor: http://www.sore

Much of the same could be written about Oslo. Just this summer the city opened up a pretty big man made beach/bath in the middle of the harbor: http://www.sorenga.no/beliggenhet/om-sorenga/sjobadet/ http://www.sorenga.no/beliggenhet/om-sorenga/sjobadet/ How they cleaned it up is actually pretty interesting. Obviously they stopped dumping waste in it in the first place. After that they placed a lot of ropes and concrete structures all over the ocean floor, to give starfish and other ocean creatures habitats. Those creatures did most of the cleaning, humans just facilitated it. Here's an article in Norwegian about it: http://www.aftenposten.no/viten/Fjernet-kloakklukten-fra-Oslofjorden-med-tjukke-tau-og-sjostjerner-8184545.html http://www.aftenposten.no/viten/Fjernet-kloakklukten-fra-Osl...