CEDA by Watershed: Carbon emissions data to drive climate action – Watershed
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
Open CEDA
Recommended for organizations or companies measuring for the first time. Open CEDA is offered for free under CC BY-SA license and requires attribution in the form of CEDA by Watershed.
- 60,000 emission factors
- 400 industries
- 148 countries
- Updated annually
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
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.
CEDA FAQs
All questions about CEDA 2025
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).
Quotes
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 - Beau Chatain, Senior Sustainability Manager at Delivery Hero.
The team behind CEDA
CEDA began in 2001 at Leiden University, where Dr. Sangwon Suh developed the world's first environmentally extended input-output (EEIO) model. Dr. Sangwon Suh has spent more than 20 years building the foundations of global carbon data—as an architect of the GHG Protocol, IPCC author, and founder of VitalMetrics (acquired by Watershed).
Today, CEDA is developed and maintained by a team of climate and data science experts.