The initiative Spree 2011 aims to make Berlin’s main river - the Spree - swimmable within 6 years! The project involves designing catchment tanks for sewerage overspills during storms (the leading pollutant) and then feeding these back into the pipes once they are cleared. Not only will the river be clean in enough to cool down in during the hot summer months, the floating containers themselves can be utilised for a variety of uses to finance the project, such as floating cinemas, cafes and even camping sites!
The project intersects with recent public debate in Copenhagen about air pollution in the city. In collaboration with Senior Scientist Jørgen Brandt from The National Environmental Research Institute in Denmark a first prototype is developed for making an indicator that can be placed in the city and display local levels of pollution as well as pollution forecasts on individual streets. The project holds an open source script for displaying data from the Internet in a variety of forms.