GRI and CDP have published an updated version of their mapping linking GRI’s climate change and energy standards to CDP’s 2026 corporate questionnaire. It’s a technical piece, but with very practical consequences for any sustainability team reporting to both frameworks.
If you’ve reached that point in the year where you’ve got two tabs open, one with your CDP response, one with your GRI report, and realised you’re writing the same thing in two places using different words, keep reading.
What this mapping actually is
The mapping is a correspondence document that identifies, for each disclosure requirement under GRI 102 (Climate Change 2025) and GRI 103 (Energy 2025), which questions or sections of CDP’s 2026 questionnaire cover the same information.
In sustainability team language: a table that tells you “if you’ve already answered this in GRI, it’s covered by these specific CDP questions” (and the other way round).
It’s not an automated system that pushes data between forms. It’s a guide to equivalences. Used well, that guide can save you literal days of work in the middle of reporting season.
Why now
This update sits within the broader collaboration between GRI and CDP, formalised in a Memorandum of Understanding in 2023 and expanded at COP29 in November 2024 with a new agreement to improve interoperability.
The 2026 update responds to two factors:
- GRI published new standards in 2025: GRI 102 (Climate Change) and GRI 103 (Energy) replaced the older GRI 305 on emissions. The previous mapping was aligned with the 2025 CDP questionnaire, so a new version was due.
- CDP has updated its 2026 questionnaire with changes covering adaptation, resilience, low-carbon energy, and reporting aligned with the GHG Protocol Land Sector and Removals Standard.
Two near-simultaneous version changes meant keeping the mapping current was no longer optional for companies reporting to both.
What the new mapping covers
The strongest correspondence sits where you’d expect:
- GHG emissions (scope 1, 2 and 3).
- Climate-related risks and opportunities, including the new layer of adaptation and resilience that CDP has reinforced in 2026.
- Decarbonisation metrics and targets.
- Energy consumption by source.
- Low-carbon and renewable energy: an area CDP has streamlined in its 2026 questionnaire, partly to maintain alignment with revised RE100 technical criteria.
- Mitigation actions and transition plans.
CDP has also confirmed it’s strengthening alignment with GRI 303 (Water and Effluents) in this cycle, although the water-specific mapping follows its own timeline.
What this changes in practice
Three concrete benefits for a sustainability team:
Cut duplication. If your business reports to CDP because investors require it and to GRI because it’s the foundation of your annual sustainability report, you stop maintaining two parallel narratives for the same data. Information gets gathered once and referenced in both places. Tools like automated data collection make the single-source approach scalable.
Improve consistency. When data comes from different sources for each framework, inconsistencies between reports are inevitable (the classic case: scope 2 figures in CDP that don’t match the figures in the GRI report because of an undocumented methodological difference). The mapping forces a single point of origin for each data point.
Speed up the reporting calendar. If CDP closes its submission window in September and your GRI report goes out in March, being able to reuse work between the two saves at least a couple of weeks per cycle. In small teams, that’s the difference between landing well and landing badly.
What the mapping isn’t
Worth being honest about the limits:
It’s not 100% alignment. Some areas have both frameworks asking for similar information at different granularities, in different formats, or with different periodicities. The mapping tells you what overlaps. It does not promise that the overlap is perfect.
It doesn’t replace your team’s judgement. A CDP question might require quantitative data where GRI accepts qualitative, or the other way round. The mapping orients you, but the call on what to actually answer remains yours.
It doesn’t automatically cover the wider ecosystem. ESRS E1 interoperability is covered by a separate mapping between CDP and EFRAG, published in March 2025. IFRS S2 alignment is yet another track. If you report to multiple frameworks, you’ll need to cross-reference several mappings, not just this one. The CSRD resource hub is a useful entry point for the ESRS side.
How to get started
If you want to put the new mapping to work this cycle:
- Download the document from GRI’s website. It’s published alongside the rest of the standard’s resources.
- Map your internal responses. If you’ve already filed the 2025 CDP questionnaire, identify for each answer which GRI requirement it covers, and vice versa.
- Centralise the data source. Define a single owner and a single repository for each data point appearing in both frameworks.
- Document the inevitable divergences. Where the mapping doesn’t reach 100%, log the methodological decision for the next cycle.
GRI Academy has announced a dedicated training module on this mapping, due for release shortly. If your team reports to both frameworks, worth keeping it on the radar.
The Dcycle angle
“Report once, use many” isn’t just a nice phrase. It’s the only realistic way to report to CSRD, CDP, GRI, ISSB and the rest of the alphabet without doubling your sustainability team every year. At Dcycle, we structure ESG data once and export it in the formats each framework demands, with traceability and evidence intact.
If you’re navigating multiple frameworks and want to see how GRI and CDP connect (alongside everything else), book a demo.