Klaus Weber has conducted research into a special type of funghi, Agaricus bitorquis, which is more commonly known as the 'sidewalk' mushroom. This wild, edible mushroom tastes slightly of hazelnut and often grows beneath tarmac, strong enough to push up concrete and break through asphalt.
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.