As independent experts of the Human Rights Council, we call on States to incorporate universally agreed international human rights norms and standards in the Outcome Document of the Rio+20 Summit with strong accountability mechanism to ensure its implementation...A real risk exists that commitments made in Rio will remain empty promises without effective monitoring and accountability. We offer proposals as to how a double accountability mechanism can be established. At the international level, we support the proposal to establish a Sustainable Development Council to monitor progress towards the achievement of the Sustainable Development Goals (SDGs) to be agreed by 2015. We recommend building a mechanism based on the Universal Periodic Review of the Human Rights Council...At the national level, we recommend establishing participatory accountability mechanisms through which people’s voice can be reflected and independent monitoring can be conducted.