Animal Agriculture and Water Use: Welfare Implications of Resource Constraints

Animal agriculture accounts for a disproportionate share of global freshwater use, contributing to resource constraints that affect both farm animal welfare and wild animal habitats. Understanding this connection links dietary choices to water-related animal welfare outcomes.

Key Facts

Animal agriculture accounts for approximately 70% of global freshwater withdrawals
A single kilogram of beef requires approximately 15,000 litres of water to produce on average
Dairy cattle require continuous access to clean water for milk production and metabolic function
Water restriction is a welfare violation under most livestock welfare codes and legislation
Drought conditions on farms create acute welfare crises as water availability drops
River and wetland depletion for irrigation of animal feed crops destroys wild aquatic habitats
Plant-based proteins require 4-10 times less water per gram of protein than animal products
Water scarcity is projected to worsen in key livestock regions as climate change intensifies

Welfare Considerations

The connection between animal agriculture water use and animal welfare operates at multiple levels. On the farm, access to clean, fresh water at all times is a fundamental welfare requirement for all livestock — restriction of water causes dehydration, reduced feed intake, and significant distress that escalates rapidly. Drought conditions create farm welfare emergencies in water-stressed regions. At the landscape level, the diversion of river and groundwater to irrigate animal feed crops depletes aquatic habitats that support billions of wild animals including fish, amphibians, and waterbirds. The scale of this impact — animal agriculture consuming 70% of global freshwater — makes dietary choices about animal products relevant not just to farm animal welfare but to the welfare of the wild animals whose habitats depend on healthy freshwater systems.

What You Can Do

Reduce animal product consumption to lower your personal contribution to agricultural water demand
Choose water-efficient protein sources including legumes, tofu, and tempeh
Support farms that implement water efficiency measures and closed-loop water systems
Advocate for water pricing policies that reflect the full cost of agricultural water use
Support conservation of rivers and wetlands threatened by agricultural water abstraction
Donate to organisations working on freshwater ecosystem protection
Engage with the water-welfare connection when discussing dietary choices with others