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CEDA is now Cornerstone EEIO

Cornerstone EEIO: The most reliable global emissions data

Cornerstone EEIO is a next-generation global emissions model that combines the best of CEDA’s global coverage with USEEIO’s detailed US data into a single open model.

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Global emmisions map

One global standard for emissions measurement

The Cornerstone model unites CEDA and the US EPA USEEIO into a single standardized emissions model that’s free, global, and open to anyone.

Available to download here.

Comprehensive coverage across 148 countries, 21 regional averages, and 405 sectors.

A sharper view of the US economy, now using annual facility-reported data.

More recent data for Europe, the UK, and China, representing structural economic changes in the leading economies.

Checked against outside benchmarks covering half of global emissions.

A time series that tracks real decarbonization from 2017, not model changes.

Built for enterprise. Backed by experts.

Need more than the open model?

The Cornerstone model is free for anyone. Watershed Enterprise Data is our licensed version for complex, highly scrutinized companies, with everything in the open model plus the expert support, breakdowns, and insights to use it with confidence.

  • Experts on call: Talk directly to the scientists behind the model. Get hands-on help through audits and stakeholder reporting.
  • Audit-ready from day one: Factors pre-converted to your industry classification, currency, and year, and broken down by scopes 1, 2, and 3.
  • Understand the why: See why factors differ across countries and industries, how much electricity sits in your supply chain, and why a factor changed over time.
  • Coming soon: Watershed agents that map your spend automatically and explain what changed in your footprint.

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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

Your support team

Watershed Enterprise Data comes with direct access to the people who build the model. Cornerstone EEIO is developed by Watershed’s climate and data science team together with scientists from the Cornerstone Sustainability Data Initiative.

It builds on more than 20 years of research that began in 2001 with the first environmentally extended input-output (EEIO) model behind CEDA.

Dr. Sangwon Suh

Dr. Sangwon Suh

Head of Science

Dr. Mo Li

Dr. Mo Li

Environmental Scientist

Dr. Steve Davis

Dr. Steve Davis

Chair, Science Advisory Board

Yohanna Maldonado

Yohanna Maldonado

Head of Climate Data

Jake Feintzeig

Jake Feintzeig

Data Scientist

Dan Frank

Dan Frank

Data Scientist

Cheng Lin

Cheng Lin

Data Scientist

Michael Steffen

Michael Steffen

Head of Climate Analytics

FAQs

Both continue as Cornerstone EEIO, one free, open model maintained by the Cornerstone Sustainability Data Initiative. Enterprise CEDA is now Watershed Enterprise Data.