Commissioned by WWF, the Öko-Institut analysed, for the second time, to what degree DOEs (Designed Operational Entities) fulfill the requirements of the UNFCCC CDM Executive Board (EB). More than 900 projects have been evaluated for this analysis. The rating is based on a statistical evaluation of decisions by the EB on projects that were validated positively by a DOE and which are later either registered, rejected, reviewed or requested for correction by the EB.

The work of evaluators who assess greenhouse gas offset projects in developing countries in the framework of the Clean Development Mechanism (CDM), has not improved. On the contrary, a yearly assessment by WWF shows that the work of the certification agencies is in fact often criticised by the UN: on a scale from A (best) to F (worst) the ‘best’ grade was a D, which was awarded only once.