Applying evidence and reason to maximize the impact of our care for animals
Effective altruism (EA) is the project of using evidence and reason to determine how to do the most good with limited resources. Applied to animal welfare, this means asking: which causes reduce the most suffering per dollar? Which interventions have the strongest evidence of impact? How should we prioritize among the enormous variety of animal welfare problems?
These questions matter enormously. The difference between effective and ineffective animal welfare interventions can be orders of magnitude — a dollar directed to the most cost-effective farm animal welfare charity may help hundreds of animals, while a dollar to a less effective cause may help far fewer. Given the scale of animal suffering in the world, this matters.
Farmed animals — 70+ billion land animals annually, plus trillions of fish — vastly outnumber companion animals in suffering. Wild animal welfare potentially involves even larger numbers. Scale analysis pushes EA attention toward factory farming and, increasingly, wild animal welfare.
Farm animal welfare is dramatically underfunded relative to the scale of suffering. US charitable giving to farm animal causes is estimated at $100–200 million annually — compared to ~$14 billion to companion animal causes serving far fewer animals. This neglectedness makes marginal dollars more valuable.
Corporate campaigns have delivered measurable, verifiable welfare improvements affecting hundreds of millions of animals. Cage-free egg transitions, gestation crate phase-outs, and Better Chicken Commitment progress all demonstrate that tractable change is possible within timeframes and budgets accessible to effective organizations.
Animal Charity Evaluators (ACE) provides the most rigorous independent evaluation of animal welfare organizations. Their current top charities and standout charities include:
Focuses on corporate campaigns for farm animal welfare. High evidence of impact from cage-free and BCC campaigns. Strong organizational capacity and cost-effectiveness data. Operates in US, UK, Mexico, and Japan.
Focuses on research and advocacy to improve wild animal welfare — a cause area combining enormous scale with near-complete neglectedness. Building the scientific foundation for wild animal welfare interventions.
Focus on welfare improvements for shrimp in aquaculture — a potentially enormous welfare cause given the billions of shrimp produced annually and evidence for their sentience. Early-stage but high tractability.
Accelerates development of alternative proteins — cultivated meat, precision fermentation, plant-based foods. Focuses on research, policy, and industry development to accelerate the protein transition.
Animal welfare research organization providing rigorous evidence base for effective advocacy. Studies include research on advocacy tactics, public attitudes, diet change interventions, and organizational effectiveness.
Works to improve welfare of farmed fish — a massively neglected cause given the scale of aquaculture and growing evidence for fish sentience. Active in India and Southeast Asia where aquaculture is largest.
EA-aligned researchers have attempted to estimate cost-per-animal-helped for various interventions. While deeply uncertain, these estimates consistently suggest corporate campaign organizations deliver among the highest welfare impact per dollar:
From an EA perspective, wild animal welfare represents perhaps the largest and most neglected cause area. Wild animals may vastly outnumber farmed animals (by many orders of magnitude if insects are included), and many wild animals experience significant suffering from predation, disease, parasites, starvation, and harsh conditions.
Organizations like Wild Animal Initiative are building the scientific foundation for thinking about wild animal welfare interventions. This is a long-horizon, research-stage cause area — but one with potentially enormous long-run impact if interventions can be identified that safely improve wild animal lives at scale.