Global Livestock Environmental Assessment Model (GLEAM)

Areas of work

Collection, harmonization, synthesis and dissemination of data

GLEAM works with countries, projects, research organizations, and other stakeholders to enable better decision making through improving the underlying data for assessing environmental impacts.

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Global Livestock Environmental Assessment Model (GLEAM)
Global Livestock Environmental Assessment Model (GLEAM)
Assessment of environmental impacts using GLEAM

GLEAM enables the assessment of greenhouse gas emissions (GHG) and other environmental impacts across the livestock production chain following a life cycle assessment approach. GLEAM could be applied at the project level, as well as at country and regional levels, and across subsectors of the livestock sector to establish baseline or reference values for environmental impacts. These include GHG emissions (CO₂, CH₄, N₂O) along the supply chain, water use for feed production and animal drinking, impacts on water scarcity, land use, and carbon sequestration.

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Identifying and quantifying pathways for mitigation

Starting from the baseline assessment, GLEAM helps identify entry points for mitigation and the more efficient use of natural resources. These include interventions in animal health, animal nutrition and feed production, manure management, and others. GLEAM also highlights potential tradeoffs and synergies across different domains.

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Global Livestock Environmental Assessment Model (GLEAM)
Global Livestock Environmental Assessment Model (GLEAM) Training
Capacity building

Building capacity to support sustainable livestock practices is a cornerstone of GLEAM’s work. The GLEAM team has developed a suite of training modules for both in-person delivery and e-learning. These materials cover livestock and climate change, GHG emissions and water use calculations using the GLEAM tool, interpretation of results, and the design of mitigation interventions. 

Participants represent diverse stakeholder groups driving sustainable livestock transformation, including government agencies and policymakers, researchers, national experts, private sector representatives, and project planners and implementers within the livestock sector. 

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Partnerships and collaboration

GLEAM collaborates with research institutions and experts from different fields to strengthen the evidence base supporting the sustainable transformation of livestock systems globally. The development of GLEAM is guided by a team of about 20 internationally recognized scientists and livestock experts who form the GLEAM scientific advisory board.

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A group of workers  pick up  lettuce  in the green house of the Agricola Semplice San Donato
Field missions across Rwanda’s tea-growing districts engaged farmers, cooperatives, and factory managers to inform a more inclusive and evidence-based nationa
Policy support

GLEAM assessments and simulations are used to support policymakers and governments in integrating livestock climate mitigation into national strategies and international commitments, including Nationally Determined Contributions (NDC), and Measurement, Reporting, and Verification (MRV) systems.

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