Dr. Sangwon Suh has spent 20 years building the foundations of global carbon data — as an architect of the GHG Protocol, IPCC author, and founder of VitalMetrics. He’s joining Watershed as Head Climate Scientist.
VitalMetrics maintains CEDA, a multi-regional input output (MRIO) database with 60,000 emissions factors from 148 countries and 400 activities, updated twice per year. It covers 95% of global emissions and is cited in CDP reports by companies like Macy's, Coca-Cola, and AstraZeneca.
The majority of carbon footprints rely on single-region models that do not account for the global nature of supply chains and give an incomplete picture of emissions. CEDA more granularly represents the complexity of global goods and services production—where regional energy systems and emissions profiles vary significantly.
CEDA includes 60,000 emissions factors from 148 countries covering 95% of the world’s emissions
Published and peer-reviewed methodology trusted by Fortune 500 companies to power their public disclosures
Annual database updates including inflation and currency adjustments
Use partial primary data from suppliers and supplement with emissions factors to get the whole picture
Only database available that provides detailed uncertainty characterizations
Methodology aligned with the principles and framework for life cycle assessment (ISO 14040)
To advance climate science research, we’re making CEDA data available for free to academic researchers and journalists. Join institutions like the University of Cincinnati and Stanford University by signing up for our private beta below.