The effective altruism movement has directed significant attention and funding toward animal welfare, applying evidence-based reasoning to identify the most impactful welfare interventions.
Effective altruism has contributed substantially to animal welfare by directing evidence-based resources to high-impact, neglected, and tractable welfare causes. The analytical framework — asking which interventions reduce the most suffering per dollar invested — has identified corporate campaigns, legislative advocacy, and alternative protein development as high-impact strategies. It has also highlighted the vast and neglected scale of wild animal suffering. Welfare advocates benefit from engaging with effective altruism reasoning even when specific conclusions are contested.