Livestock’s Long Shadow
Source: Food and Agriculture Organization
Year: 2006
Type: Global Assessment Report
The Food and Agriculture Organization’s report Livestock’s Long Shadow is a landmark global assessment of the environmental impacts of animal agriculture. It provides one of the earliest comprehensive analyses of how livestock production contributes to climate change and environmental degradation.
The report estimates that livestock production is responsible for approximately 14.5% of global greenhouse gas emissions, placing it among the leading contributors to climate change. These emissions arise from multiple stages of production, including feed cultivation, land-use change, animal digestion, manure management, and transportation.
Cattle production is identified as a particularly significant source of emissions due to methane released during digestion and the extensive land required for grazing and feed production. The report also highlights how deforestation for pasture and feed crops contributes to carbon emissions, further intensifying the climate impact of livestock systems.
Beyond emissions, the report examines the broader environmental footprint of animal agriculture, including its role in land degradation, water use, and biodiversity loss. These interconnected impacts underscore the scale of influence that livestock production has on global ecosystems.
The FAO emphasizes the need for systemic changes in both production practices and consumption patterns. Reducing demand for resource-intensive animal products is identified as a key strategy for mitigating environmental damage and improving sustainability.
Livestock’s Long Shadow remains a foundational resource in understanding the environmental consequences of modern food systems. Its findings continue to inform policy discussions and highlight the importance of dietary shifts in addressing climate change.
