GLEAM-interactive (GLEAM-i) brings the core functionalities of the FAO Global Livestock Environmental Assessment Model to the public in a single Excel file. 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