Our Mission
We're on a journey to empower businesses with actionable environmental data, enabling meaningful progress toward a sustainable and low-carbon future.
The World Emission Factor Database (WEFDB): Your Comprehensive Hub for Environmental Data
The World Emission Factor Database (WEFDB) is your ultimate one-stop-shop for reliable, science-driven environmental data. With unmatched global coverage, robust scientific foundations, and a user-friendly design, the WEFDB simplifies the complexities of emission factors. Updated quarterly and seamlessly compatible with leading databases, it empowers organizations to make precise, informed decisions. Whether you need country-specific insights, auditable methodologies, or flexible data solutions, the WEFDB is built to meet your needs at every step of your sustainability journey.
Global Coverage
Every country worldwide, plus all U.S., Canadian, and Australian states
Plug-and-play
The WEFDB eliminates the ambiguity around emission factors by providing clear, well-documented entries, each accurately tagged to its GHG category and scope.
Flexibility That Fits
The WEFDB offers a balanced mix of spend-based and activity-based emission factors. It’s also designed for seamless compatibility with other leading reference databases, such as Ecoinvent.
Science-backed
Each and every of our emission factor is grounded in trusted scientific data.
Country-specific adjustment methodologies are developed by sustainability experts and adhere to the highest standards of integrity.
Quarterly Updates
The quality of any analysis depends on the reliability of its data. WEFDB stands out as the most comprehensive and up-to-date environmental database available.
