UNEP launched the Global Environment Outlook (GEO) Project in 1995. It has two components:
A coordinated network of Collaborating Centres is the core of the GEO process. These centres have played an increasingly important role in preparing GEO reports. They are now responsible for almost all the regional inputs, thus combining top-down integrated assessment with bottom-up environmental reporting. A number of Associated Centres also participate, providing specialized expertise. Four working groups – on modelling, scenarios, policy and data – provide advice and support to the GEO process, helping coordinate the work of the Collaborating Centres to make their outputs as comparable as possible.