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CityWall is a large multi-touch display installed in a central location in Helsinki which acts as a collaborative and playful interface for the everchanging media landscape of the city. The new interface launched in October 2008 also allows working with 3D objects, which enables multiple content and multiple timelines.

CityWall presents images, videos, descriptions and discussions on how nature in Helsinki benefits and disturbs dwellers. A single tree, for instance, can be both a useful physical shelter, an appreciated element in the urban landscape, a source for an irritating pollinosis and a danger for traffic. Many of the changes in the benefits and nuisances of nature are, at least partly, dependent on human activities. The settling of rabbits as permanent residents to Helsinki, for instance, follows partly from global warming that allows released pet rabbits to survive winters in urban green areas. To participate in this discussion, visit CityWall Flickr page and add comments there. You can add images to this discussion by attaching tags "cwnicehki" for nice things and "cwnuishki" for things that are nuisance in Flickr (additionally put tag "cwhkirabbits" if the photo includes rabbits!). You will need to establish your own Flickr account for this (this is a free service).