Why synthesize evidence on the SDGs?

We are halfway to 2030, the deadline for achieving the SDGs. This is an opportunity to bring together existing evaluative evidence and generate insights on what works, in which contexts, and why. Evaluation synthesis systematically and comprehensively draws on findings from multiple evaluations to build a broader understanding of progress towards the SDGs. It can reveal how and where interventions are making a difference, for whom, as well as the barriers and enabling factors shaping change and innovation.