An Earthship is a house that can provide in all basic needs of life and has a minimal ecological impact. It's concept was developed by architect Michael Reynolds and is based on the ideas of using durable technology, the reusage of discarded materials and being autonomous. Meanwhile about a 1000 earthships have been build on several continents.
A few other links: Wikipedia Earthship.org
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.