Brussels, 13/06/2012 (Agence Europe) - With all parties fearing the breakdown of the UN summit on sustainable development, RIO +20 (20-22 June), the European Union is trying to lay these fears to rest, by reiterating its commitment to contributing to the success of this conference to mark the anniversary of the Earth summit. The EU wants a roadmap for the green economy, together with “concrete, credible and irreversible” objectives, Environment Commissioner Janez Potocnik said on...