- CDP (Carbon Disclosure Project) is an international non-profit founded in 2000 that runs the world’s leading environmental disclosure system through a single annual questionnaire.
- It covers climate, water and forests (with ocean added in 2026) and scores companies from A to D based on transparency and environmental maturity.
- Disclosure is voluntary but heavily requested by investors, customers and buyers; the 2026 scoring deadline is September 16.
- CDP isn’t mandatory, but it aligns with CSRD, ISSB (IFRS S2) and TCFD, making environmental data reusable across frameworks.
CDP (Carbon Disclosure Project) is one of the world’s leading frameworks to assess, benchmark, and improve the environmental performance of companies, cities, and institutions.
Used by investors, buyers, and regulators, CDP goes far beyond a simple questionnaire: it helps structure environmental transparency, climate risk management, and organizations’ transition strategies.
What is CDP (Carbon Disclosure Project)?
CDP is an international non-profit organization, founded in 2000, whose mission is to encourage organizations to measure, manage, and disclose their environmental impacts.
It operates through a single standardized, integrated annual questionnaire covering climate, water, forests and, increasingly, other environmental topics (plastics, ocean, biodiversity). A simplified questionnaire is available for SMEs.
What does “CDP” stand for?
Originally, CDP stood for Carbon Disclosure Project, reflecting its initial focus on environmental impacts linked to greenhouse gas emissions.
Today, while the acronym remains, CDP covers a much broader scope than carbon alone.
What is CDP used for, and why was it created?
CDP was created to meet a clear need from investors: access to comparable, reliable, harmonized climate-related environmental data to better assess climate risks and opportunities.
Its main goals are to:
- Promote environmental transparency
- Help organizations understand their impacts, risks, and dependencies
- Guide capital allocation toward more resilient organizations
- Accelerate the transition to a low-carbon economy
Structure your CDP approach from day one
Learn how the Plan Do Check Act (PDCA) method can help you organize climate data and manage environmental performance over time.
Who is CDP for?
Large companies
Large companies are the primary CDP respondents, often invited—or required—by investors, customers, or financial partners.
CDP then becomes a key tool for strategic steering, ESG reporting, and investor dialogue.
SMEs and mid-sized companies
SMEs and mid-sized companies may also be requested to disclose, especially when they sit within the value chains of global players.
For them, CDP is often an opportunity to structure their approach and anticipate future requirements.
Investors and financial institutions
Investors use CDP scores to:
- Assess environmental risks related to climate and other issues
- Benchmark companies
- Inform capital allocation decisions
Cities and public organizations
Cities, regions, and public organizations can also respond to CDP to measure and manage their environmental impacts.
What topics does CDP assess?
CDP structures its disclosure around distinct thematic areas, brought together since 2024 into a single, integrated questionnaire.
CDP Climate Change
The Climate Change questionnaire is the most widely used.
It typically covers:
- GHG emissions (Scopes 1, 2, and 3)
- Climate strategy
- Climate-related risks and opportunities
- Reduction targets
- Governance and integration into overall strategy
CDP Water Security
This questionnaire assesses:
- Water resource management
- Risks related to scarcity or pollution
- Impacts on aquatic ecosystems
CDP Forests
This questionnaire mainly applies to sectors linked to agricultural and forest commodities and aims to tackle deforestation.
At this stage, these topics can be disclosed voluntarily, but they are not yet scored as standalone themes in the same way as climate, water, or forests. They still reflect CDP’s trajectory toward a broader environmental and “nature” approach.
CDP topics — summary table
| CDP theme | Main objective | Who it applies to |
|---|---|---|
| CDP Climate Change | Measure and reduce GHG emissions | All companies |
| CDP Water Security | Prevent and manage water-related risks | Water-intensive sectors |
| CDP Forests | Address deforestation | Food, agriculture, commodities |
| Plastics & Biodiversity | Reduce impacts on ecosystems | Product-impact sectors |
How does CDP work?
CDP follows a simple flow:
- An organization is invited by investors, customers, or partners to respond to the CDP questionnaire, or chooses to disclose voluntarily
- It collects, structures, and submits environmental data
- CDP reviews responses using a standardized methodology
- A score is assigned, reflecting environmental maturity
Maximise your CDP 2026 score
We designed this guide to help you understand the scoring, avoid common pitfalls, and structure your response to make meaningful progress.
CDP 2026: what’s changing compared with 2025?
With worsening climate impacts, growing resource insecurity, and accelerating biodiversity loss, CDP is evolving its questionnaire from 2026 onward.
The stated goal is clear: strengthen the link between disclosed data and real-world action.
For 2026, CDP has announced several major directions:
- Deeper alignment with global standards, to improve consistency across CDP, CSRD, ISSB, and other ESG frameworks
- A progressive expansion of “nature” coverage, including stronger attention to ecosystems—including ocean-related topics
- More usable, decision-ready data, helping organizations and stakeholders better identify risks, resilience levers, and Earth-positive opportunities
- A strengthened SME questionnaire, with a dedicated climate score (the "SME A score") to recognize smaller companies taking action.
How does a CDP disclosure work in practice?
The CDP timeline
CDP disclosure follows an annual cycle:
- Questionnaire opens on June 15
- Scoring deadline (submit to be scored): September 16
- Scores are published toward the end of the year (early December)
Data to prepare
A disclosure typically requires:
- GHG emissions data
- Climate risk analyses
- Environmental KPIs
- Policies, strategies, and action plans
Internal teams involved
CDP responses usually involve:
- CSR / ESG teams
- Finance teams
- HSE, Procurement, Operations
- Executive leadership for strategic validation
How is the CDP score calculated?
The scoring approach
CDP assesses organizations using a progression-based approach: it evaluates not only performance, but also the quality and maturity of the process.
What CDP looks at
Key criteria typically include:
- Data transparency
- Understanding of risks and impacts
- Implementation of concrete actions
- Integration into overall strategy
What are CDP score levels?
CDP assigns scores from A to D, with an F in some cases:
- A – Leadership: integrated strategy and advanced actions
- B – Management: structured management of issues
- C – Awareness / Knowledge: impacts understood, limited mature action
- D – Disclosure: transparency without real environmental management
- F: insufficient or unusable data
CDP scores and maturity — summary table
| CDP score | Level | What it means |
|---|---|---|
| A | Leadership | Environmental strategy embedded in governance, with advanced actions |
| B | Management | Active management of topics, with action plans in place |
| C | Awareness / Knowledge | Impacts identified, limited structured action |
| D | Disclosure | Transparent reporting without strong environmental steering |
| F | Failure | Insufficient or non-actionable information |
Why is CDP strategic for companies?
ESG credibility and reputation
A strong CDP score boosts environmental credibility and transparency with stakeholders.
Investor relations
CDP is widely used by institutional investors, making it a key lever for investor dialogue.
Market access and tenders
More and more tenders include CDP as a selection criterion.
Is CDP mandatory?
CDP is not a regulatory requirement in itself.
However, it is strongly aligned with emerging regulation and can help address requirements linked to:
- CSRD
- ISSB / IFRS S2
- Climate reporting expectations
How does CDP compare with other ESG frameworks?
CDP vs CSRD
- CDP is a voluntary questionnaire
- CSRD is a European regulatory requirement
- CDP data can support disclosures for material environmental ESRS topics
CDP vs GRI
- GRI is a broad ESG reporting framework
- CDP focuses primarily on environmental and climate topics
CDP vs TCFD
- CDP largely incorporates TCFD recommendations
- It can be seen as an operational translation of TCFD via a structured questionnaire
How to improve your CDP score
To make progress:
- Build a clear environmental management strategy
- Set quantified targets
- Implement and track action plans
- Improve data quality and traceability
- Document and explain methodological choices
Understand PDCA applied to carbon management
Learn how to structure your climate approach with the Plan Do Check Act method, and apply it to carbon management and other CSR topics.
Should you get support for CDP?
Preparing a CDP disclosure can be complex and time-consuming, especially for a first submission.
Support can help you:
- Structure and validate data
- Secure the methodology
- Align CDP with CSRD and other ESG frameworks
- Save time and improve the score
Structure your CDP disclosure with an expert
Talk to a CDP expert to organize your data, secure your methodology, and improve your score with confidence.
Avoid confusion: other meanings of “CDP”
CDP as Customer Data Platform
In marketing, CDP can also mean Customer Data Platform, unrelated to sustainability.
CDP in IT and networking
CDP is also used in networking (Cisco Discovery Protocol).
CDP (Carbon Disclosure Project) — Key takeaways
| CDP keyword | Key takeaway |
|---|---|
| CDP Carbon Disclosure Project | Global framework for environmental transparency |
| CDP score | A–D (or F) rating based on disclosure, management, and leadership |
| CDP Climate Change | Core module on GHG emissions and climate strategy |
| CDP and CSRD | Data can be reused for European regulatory reporting |
| CDP questionnaire | A structuring exercise requiring method, data, and coordination |
FAQ
Is CDP recognized by investors and banks?
What data do you need to answer the CDP questionnaire?
Is the CDP score public?
Can a low CDP score hurt a company?
How long does it take to prepare a CDP disclosure?
