Uploaded on 2015-05-04 by eribar

[1]: https://edxuploads.s3.amazonaws.com/14307362781876657.jpg In this building we could see (green arrow) some stone coming from a quarry less than 10km away, (red arrow) roof sealing in copper no more produced in Europe, and (blue arrow) insulation in polystyren produced in Europe (even in Swutzerland) but on the basis of hydrocarbon. This give more or less 3 scales for the material needed for a construction.