Open CEDA
Recommended for organisations or companies measuring for the first time.
- 60,000 emission factors
- 400 industries
- 149 countries
- Updated annually
Descriptive sentence about CEDA
The most reliable emissions data for global companies
CEDA sets a new standard for Scope 3 carbon emissions data so you can power your sustainability programs with the most comprehensive and up-to-date spend-based data.
CEDA by Watershed
Watershed’s Comprehensive Environmental Data Archive (CEDA) is built by leading sustainability scientists for real-world application.
- Globally representative, capturing true emissions variation across 148 countries and regions
- Focus on what matters with the highest level of industry granularity available on a spend-based database (60,000 emission factors)
- Reflect global decarbonisation progress in your footprint with annual updates
- Enterprise-ready and designed for the specific needs of complex and highly scrutinized businesses
- GHG protocol compliant and used by the world’s leading organizations
One leading database. Two options.
CEDA
Recommended for more advanced sustainability programs and service providers. Includes everything in Open CEDA, plus:
- Pre-adjusted emission factors that account for price index adjustments, currency exchanges and producer to purchaser price conversions.
- Breakdown by scopes 1, 2, 3
- Breakdown by type of GHG
- Breakdown by FLAG and Non-FLAG emissions
- 150 additional agricultural commodities in kgCO2e/kg product
- Contribution analysis file to understand emission factor differences
- Cross-industry classification mapping file
- Support and services
Request CEDA now
Using the form below, choose whether you'd like us to email you a download link for the free version (Open CEDA), or if you'd like to enquire about purchasing a version of CEDA with additional data breakdowns and support. Please note: Open CEDA is offered for free under CC BY-SA license.
For over two decades, CEDA’s emissions data has been instrumental in driving progress toward achieving net zero. By making CEDA freely accessible, we are taking a bold step toward establishing a unified global emissions database that guarantees global consistency—enhancing trust and empowering more informed decision-making.
We use CEDA in our Scope 3 emissions because the level of granularity and coverage offered by CEDA makes us feel more confident about how we represent our global procurement and operations in our annual reporting
The team behind CEDA
Dr. Sangwon Suh
Head of Science
Dr. Mo Li
Environmental Scientist
Dr. Steve Davis
Chair, Science Advisory Board
Yohanna Maldonado
Head of Climate Data
Jake Feintzeig
Data Scientist
Dan Frank
Data Scientist
Cheng Lin
Data Scientist
Michael Steffen
Head of Climate Analytics
CEDA for researchers and academia
Watershed welcomes research and collaboration based on CEDA. The ultimate goal is to advance the climate data ecosystem and accelerate decarbonization. CEDA has been used over the last 20 years by academics, researchers and non profit institutions around the world. We are actively developing an academic version of CEDA. If you are interested in accessing CEDA for academic or research purposes and need access to more information about our models please reach out.
You can find documentation and answers to common questions about the CEDA 2025 release at the following links (all open as PDFs on a new tab).