Red metal in midst of a green countryside helps to sustain the nature. When a railway or tram line is newly built, it can be seen that trolley wires are actually made of copper, as can be seen here from a bird's perspective down the Stuttgart TV tower. Unfortunately the wires are blackened very soon after going into operation because the pantographs of locomotives have a contact piece made of carbon.Read full article
Is it presumptuous to take stock of this year's development (towards sustainability) only halfway through? Yes, it is, but anyway!
Something remarkable has happened this year: sustainability and climate change are on the agenda and will remain so, no matter what. No doubt the trigger (or the ratchet) was Sir Nicholas Stern's review and the way it framed the issues in both political and economic terms. A framework that also enabled businesses to see their role in the game, their threats and their opportunities.Read full article