Horsens, 19/04/2012 (Agence Europe) - The countdown has started for “Rio +20”, the UN conference on sustainable development (20-22 June), at which some 50,000 attendees are expected. Aware that time is running short, the environment ministers of the EU27 meeting in Horsens (Denmark) for their informal Council responded to calls by Ida Auken, the president of the Council, on Thursday 19 April, by giving her a clear mandate for the final negotiating session to take place in New York next...