Sustainability Is the Top Predictor of Project Success — Almost Nobody Can Execute On It

A joint study released in June 2026 by the Project Management Institute (PMI) and Green Project Management (GPM) found that sustainability has become a top predictor of project success — but most organizations still can't turn that belief into results. The gap between strategy and delivery is stark: 85% of sustainability executives are confident their organization will hit its goals, but only 43% of Project Management Office (PMO) leaders share that confidence, and just 20% of project professionals themselves feel fully confident.

The gap isn't in ambition, it's in capability: 79% of respondents agree sustainability sets their organization up for long-term success, but only 41% say it's actually embedded in day-to-day project work. That's precisely the gap the new Certified Sustainable Project Professional (CSPP)™ certification, launched by PMI and GPM in June 2026 to replace the earlier GPM-b, is designed to close — built on the P5 methodology, it teaches how to translate sustainability principles into concrete project-level decisions rather than strategy-level statements.

For us, that's a direct confirmation of why we run CSPP exam prep in the first place: the certification isn't a resume line, it's a specific skill for closing exactly the gap PMI and GPM just measured. If your organization has a sustainability strategy that isn't landing at the project level yet, that's exactly what our certification prep helps fix.