GLEAM Model description
The present document describes in detail the current version of the model (GLEAM 2.0) by presenting a thorough description of modules, background data, assumptions, variables and equations. GLEAM 2.0 is based on 2010 data for animal numbers and distribution, herd parameters, feed yields and rations and manure management systems. As GLEAM is in constant development, the documentation is subject to changes and updates. Please verify you are referring to the intended version. To retrieve earlier versions of the documentation, please contact us.
An Excel version of the model: GLEAM-i
GLEAM-interactive (GLEAM-i) brings the core functionalities of the FAO Global Livestock Environmental Assessment Model to the public in a single Excel file. The current version of GLEAM-i allows the direct comparison between Baseline and Scenario conditions, includes feedlot systems for cattle and incorporates the 2010 background data from GLEAM. 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.
[GLEAM-i 2.0 (Feb. 2017)] [download user guide]
GLEAM Related publications
Tackling the climate change through livestock
Greenhouse gas emissions from ruminant supply chains
Greenhouse gas emissions from pig and chicken supply chains
Greenhouse gas emissions from the dairy sector
Additional and background publications
Mitigation of greenhouse gas emissions in livestock production
Global livestock production systems
SOFA - Livestock in the balance
Gridded livestock of the world
Livestock's long shadow