DIN SPEC 91637

August 20, 2025

ClimateView helps establish national standard for measuring climate impact

Berlin, Germany — How do we know if a climate intervention really works?

That question is now easier to answer thanks to the DIN SPEC 91637, the first national standard for measuring the impact of climate action.

The standard was initiated and chaired by ClimateView, and developed together with DIN and a wide consortium of partners from cities, regions, energy agencies, academia and private sector.

DIN SPEC 91637 introduces a shared outcome logic, grounded in IPCC science, that links interventions to activity shifts and measurable ecological, economic, and social outcomes.

Graph: Outcome Logic and how the levels interact

For the first time, governments across all levels can assess the impact of their climate actions using a transparent and comparable methodology.

A milestone for climate action planning

Michael Bergöö, ClimateView’s Global Director Public Sector and chair of the DIN SPEC 91637’s development, reflects on its significance:

“One of the biggest unresolved challenges in climate action planning has been impact measurement. Politicians, treasurers, and funders all ask the same question: Can you show me the impact of our investments? Until now, cities relied on ad-hoc assessments that were hard to compare. With DIN SPEC 91637, we now have a common methodology that any government can use. Thanks to its comparability and increasing number of cities working with the standard, the impact assessments become more robust – bringing much-needed credibility to climate investment decisions.”

DIN SEC 91637 is the first national standard for measuring the impact of climate mitigation.

Why it matters

This new standard will help administrations not only measure impacts but also prioritize interventions, allocate resources more effectively, and build trust with funders and citizens alike. By offering a consistent way to evaluate climate measures, it strengthens the foundation for fair, economically viable, and science-based progress toward climate neutrality.