This First Report of the Fifth Overall Performance Study (OPS5) of the Global Environment Facility (GEF) delivers a promise to provide evaluative evidence at
the start of the negotiations for the replenishment of the GEF. In the past, overall performance studies used to be made available to the replenishment at a late stage in
the negotiations. For the sixth replenishment and the Fifth Overall Performance Study,
the GEF Evaluation Office proposed to deliver two reports: a first report that would provide a synthesis of evaluation findings since OPS4 and a second, final, report that would deliver more in-depth evaluative evidence on subjects deemed important for the
replenishment that are not regularly evaluated in the GEF. This First Report thus focuses
on the rich material emerging from no less than 33 evaluations carried out after OPS4 was presented to the fifth replenishment.