A good round-up of the ecololgically friendly build environment.
Check out: An urban ecology demonstration in Kolding Denmark where sewage is treated and recycled back as toilet flushing water. The glass pyramid is the final treatment step.
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.