GLEAM-i, the interactive version of the FAO Global Livestock Environmental Assessment Model

GLEAM-i is the first open, user-friendly and livestock specific tool designed to support governments, project planners, producers, industry and civil society organizations to calculate emissions using Tier 2 methods. GLEAM-I can be used in the preparation of national inventories and in ex-ante project evaluation for the assessment of intervention scenarios in animal husbandry, feed and manure management.


While the methodology used by GLEAM-i is scientifically robust, care should be taken if trying to compare these outcomes to individual country or regional studies. These studies may assess different parts of the livestock systems, have had access to more specific input parameters, utilize a smaller sample size or report for different purposes and as such applying different methodological approaches.