The Multidisciplinary Expert Scientific Advisory Group (MESAG) will play a critical role in providing guidance to UNEP’s Executive Director, authors and experts on the scientific credibility of the GEO process. In order to perform these important functions, the Multidisciplinary Expert Scientific Advisory Group will meet regularly through conference calls and face to face meetings to develop recommendations to help move the process forward. It is therefore important to establish the membership of the MESAG based on nominations from Member States, members of specialised agencies, UNEP-accredited Major Groups and Stakeholders, other specialized scientific institutions and groups of assessment experts