CEDA by Watershed

Global scope 3 emissions data for driving climate action

Get the most comprehensive and up-to-date Scope 3 carbon emissions data with Watershed’s Comprehensive Environmental Data Archive (CEDA).


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GHG Protocol approved and trusted by

The most comprehensive and up-to-date emissions database

CEDA includes 60,000 emissions factors from 400 industries across 148 countries and regions, covering 95% of the world’s GDP. As a multi-regional environmentally extended input-output (EEIO) database, CEDA is unique—providing annually updated data that reflects global decarbonization in your footprint so you can measure and report with confidence.


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Built for companies with global supply chains

CEDA’s emissions factors reflect the complexity of global production and trade—accounting for the significant variance in energy systems and emissions profiles between regions. Single-region models can’t do this, leading to incomplete and inaccurate emissions calculations.

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Current, real-world data

While other databases use decade-old information, CEDA’s emissions factors are updated annually. This makes CEDA the most up-to-date spend-based emissions database—reflecting global decarbonization progress made through governmental action and technological advancements.

Global CO2 emission intensity trends by country

Built for assurance, so you can operate with confidence

CEDA is built to be audit-ready with full calculation transparency and comprehensive explanations. Quickly understand calculations, and share with high levels of trust and confidence. Unlike other databases, CEDA also has a dedicated team for customer support and enablement.

GHG emission factors by country by purchaser

Solving the carbon data challenge

CEDA was developed by Dr. Sangwon Suh, who 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). Dr. Suh is Watershed’s Head Scientist.

CEDA database founder Dr. Sangwon Suh and some sample materials

Go deeper on CEDA

Download the guide to learn about:

  • The history of CEDA's development
  • The CEDA methodology
  • The benefits of using CEDA
  • How to access and use CEDA
  • Frequently asked questions
Download guide
CEDA Methodology Archive

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