FactoryFarmFall — The Global Progress Tracker

Methodology — how we calculate every number on this page Show ↓

Land animals currently in factory farms (stock)

~23 billion land animals at any given time: ~31B farmed land animals alive (Sentience Institute 2019, building on FAO data) × 74% factory farmed share (Sentience Institute; adopted by Our World in Data, Ritchie 2023). Farmed fish add an estimated 39–216B individuals, virtually all in intensive systems — shown separately due to high uncertainty. CORRECTION (June 2026): an earlier version of this counter showed ~77B, conflating animals slaughtered per year (a flow) with animals alive at a time (a stock). See changelog.

Slaughter counters (flow)

Annual: ~80B farmed land animals slaughtered per year (FAO; Animal Charity Evaluators 2025 estimates 83B). ~74–90% raised in industrial systems; chickens — over 70B/yr — are the most intensively farmed. Year counter: annual × (days elapsed / 365). Day counter: annual ÷ 365. Visit counter: annual ÷ 31,536,000 seconds × elapsed seconds. Extrapolated from annual data — not real-time feeds. Farmed fish slaughter (est. 124B/yr) not yet included.

Progress percentages

Each pillar score is a weighted average of its L2 solution scores, weighted by animal numbers affected. Each L2 score is derived from measurable proxies — jurisdictions with legislation, companies with verified commitments, market share of alternatives — divided by the total needed for 100%. All calculations shown explicitly at every level. Every number is contestable: email contribute@factoryfarmfall.org.

Global score (14%)

Weighted average across 8 pillars. Weights reflect leverage and animal numbers affected: Legislation 20%, Corporate behaviour 18%, Alternative supply 15%, Finance 12%, Culture & demand 12%, Knowledge & transparency 10%, Just transition 7%, Trade & global south 6%. The weights are FFF's own judgment, not an external standard: a different analyst could reasonably weight the pillars differently. Score will be revised as the methodology is challenged. Version 1.2 — see changelog.

Data-quality labels

Primary data counted directly from a primary record (e.g. a law on EUR-Lex). Research estimate taken from published research, with its uncertainty. FFF judgment a calculation that includes an adjustment, weighting or assumption chosen by FFF. Reasonable people can disagree with these; they are shown so you can. Click any for the calculation behind a number.

Primary sources

FAO. (2023). FAOSTAT: Livestock primary data. Food and Agriculture Organization. https://www.fao.org/faostat/
BBFAW. (2024). Business Benchmark on Farm Animal Welfare 2024 Annual Report. https://www.bbfaw.com/
Sentience Institute. (2023). Global farmed animal numbers. https://www.sentienceinstitute.org/
Our World in Data. (2024). Meat and dairy production. https://ourworldindata.org/meat-production
Good Food Institute. (2024). State of the Industry Reports 2024. https://gfi.org/resources/
FAIRR Initiative. (2024). Protein Producer Index 2024. https://www.fairr.org/
Open Wing Alliance. (2024). Global Corporate Cage-Free Commitments Tracker. https://openwingalliance.org/
Šimčikas, S. (2023). Is the percentage of animals factory farmed increasing? Rethink Priorities.

All data, methodology, and source code are open. Dispute a number or submit new data: contribute@factoryfarmfall.org — Framework version 1.2 · Published June 2026 · Changelog: 29 Sep 2026 — source review: removed a citation whose DOI pointed to a different paper ("Springmann 2022"); removed an unverifiable statistic (Ghent canteen, 93%); corrected the first broiler operation (Ocean View, Delaware), the Singapore cultivated-meat approval date (2020), the Swedish law year (1988), the FAO emissions attribution (18% in 2006, 14.5% in 2013), the slaughter statistic (all systems, not factory only) and the IPES-Food citation; replaced dead or wrong links; added data-quality labels to every calculation; the About page no longer repeats the retired ~77B figure. · 10 Jun 2026 — corrected headline counter from ~77B to ~23B land animals (stock/flow conflation; flagged through internal review against Sentience Institute and Our World in Data estimates). Errors corrected publicly within 7 days of discovery. That is the policy.

Resources

Scientific references, key statistics & ecosystem.

Key studies and statistics, each with a link to the original source so you can check it yourself. Key terms defined. Key organisations mapped to the pillars they advance. Links last checked: September 2026.

True cost of factory farmed meat — the hidden price gap ▶

Factory farmed meat is artificially cheap. The market price reflects only the cost of production. It does not include the cost of climate damage, water pollution, antibiotic resistance, pandemic risk, public health impacts, or animal suffering — costs paid by society, not by producers. Factory farming is economically viable only because it externalises its true costs onto everyone else. This is the most important structural fact about the system.

External costs per kg — research estimates (EU context)

Product	Market price	External costs (research range)	Surcharge
Beef	~€8/kg	€6.60–€8.95/kg	~100%
Chicken	~€4/kg	€2.80–€22/kg	70–550%
Pork	~€4/kg	€1.70–€8.95/kg	40–225%
Plant-based protein	~€6/kg	€0.02–€0.10/kg	~6%

Note: ranges vary by methodology. Lower bound = climate costs only (Pieper et al. 2020). Upper bound = climate + health + animal welfare (Eurogroup for Animals / Impact Institute 2023). Figures to be re-checked line by line against the reports. All figures are estimates with significant uncertainty. ±methodology.

What the external costs include

Climate (GHG)	Livestock responsible for 14–18% of global GHG emissions. Methane from enteric fermentation and nitrous oxide from manure are far more potent than CO₂ over short timescales. None of this is in the market price.
AMR (antibiotics)	73% of global antibiotics used in animal agriculture. AMR kills 1.3M people/year now. Projected healthcare costs by 2050: $100+ trillion. Not one cent of this appears in the price of meat.
Pandemic risk	Factory farming creates ideal conditions for zoonotic disease emergence. COVID-19 cost the global economy an estimated $12–16 trillion. H5N1 is currently active in US poultry and dairy herds.
Water & land	Animal agriculture uses 70% of agricultural land and is the leading driver of deforestation globally. Manure runoff causes severe nitrogen and phosphorus pollution in waterways. These ecosystem costs are unpriced.
Animal welfare	Eurogroup for Animals (2023): animal welfare abatement costs reach €8.95/kg for red meat and €22.01/kg for white meat — the cost of bringing conditions to a welfare-acceptable standard. The largest and most contested externality category.

The structural implication

If the true cost of meat were reflected in its price, factory farming would not be economically competitive. At true-cost prices, plant-based alternatives are already at or below parity. TAPP Coalition (2023) estimates that fair-priced meat in the EU would reduce consumption by 30% for chicken, 57% for pork, and 67% for beef — without any ban, any campaign, and without asking anyone to sacrifice. The single most powerful lever available is repricing externalities. This is how society ended leaded petrol, is ending coal, and will end factory farming.

Primary sources

Pieper, M. et al. (2020). Calculation of external climate costs for food highlights inadequate pricing of animal products. Nature Communications, 11, 5356. https://doi.org/10.1038/s41467-020-19474-6
Eurogroup for Animals / Impact Institute. (2023). External costs of animal sourced food in the EU. https://www.eurogroupforanimals.org/library/external-costs-animal-sourced-foods-eu
TAPP Coalition. (2023). True pricing of food — fair meat prices in the EU. https://tappcoalition.eu/
FAO. (2023). The State of Food and Agriculture 2023 — Revealing the true cost of food. https://www.fao.org/agrifood-economics/publications/detail/en/c/1661488/

Glossary of key terms ▶

Factory farming: Any system where stocking density or confinement prevents animals from expressing the majority of natural behaviours for the majority of their lives. Applied by FFF using species-specific measurable thresholds based on the Five Freedoms framework. ±12% margin of error.
Five Freedoms: Framework rooted in the 1965 Brambell Report and formalised by the UK Farm Animal Welfare Council in 1979: freedom from hunger and thirst; from discomfort; from pain, injury and disease; from fear and distress; and freedom to express normal behaviour. The global benchmark for animal welfare assessment.
Battery cage: A wire cage housing laying hens with approximately 550cm² of space per bird — less than an A4 sheet of paper. Banned in the EU since 2012 for conventional battery cages. Enriched colony cages (larger but still highly restrictive) remain legal.
Better Chicken Commitment (BCC): A corporate welfare standard for broiler chickens requiring: maximum 30kg/m² stocking density, no fast-growing breeds, meaningful environmental enrichment, natural light, and controlled atmosphere stunning. Approximately 320 companies have signed globally.
Gestation crate: A narrow metal stall used to confine pregnant sows, typically 0.6m × 2m — too small to turn around. Partially banned in the EU since 2013 (permitted for first 4 weeks of pregnancy). Banned in 10 US states. No restrictions in China, Brazil, or most of Asia.
Cultivated meat: Meat grown directly from animal cells in a bioreactor, without slaughter. Also called cell-cultivated or lab-grown meat. Approved for sale in Singapore (2020) and the US (2023). Not yet approved in the EU. Current cost: $20-100 per 100g; target: $2 per 100g.
Speciesism: The assumption that the interests of one species (typically humans) automatically outweigh the interests of other species. Coined by Peter Singer in Animal Liberation (1975). The philosophical foundation of the modern animal rights movement.
Just transition: The principle that workers and communities dependent on industries being phased out should not bear the economic cost of that transition alone. Applied to factory farming: funded exit pathways, retraining programmes, and rural economic diversification for the approximately 1.3 billion people involved in animal agriculture globally.
True cost accounting (TCA): An economic methodology that includes the full environmental, health, and social costs of a product in its price — including GHG emissions, land use, water use, antimicrobial resistance, pandemic risk, and animal welfare costs. External costs of conventional meat range from €1.70/kg (pork, climate only) to €22/kg (white meat, including welfare costs). Factory farmed meat is artificially cheap because these costs are paid by society, not by producers. See the True Cost section below.
AMR — Antimicrobial resistance: The evolution of bacteria, viruses, and other microbes that renders antibiotics ineffective. Factory farming drives approximately 73% of global antibiotic use — primarily administered to healthy animals in overcrowded conditions to prevent disease spread, not to treat illness. This routine overuse accelerates the development of drug-resistant strains. AMR currently kills approximately 1.3 million people per year globally and is projected to kill 10 million per year by 2050, making it one of the greatest public health threats of the 21st century. Source: WHO (2023).
Externality: A cost or benefit of an economic activity that falls on parties not involved in the transaction. Factory farming externalises enormous costs onto society: climate damage, water pollution, antibiotic resistance, pandemic risk, public health costs, and animal suffering. When these are not included in the price of meat, factory farming appears cheaper than it truly is. Internalising externalities — making producers pay the full cost — is one of the most powerful levers for systemic change.
Zoonotic disease: An infectious disease that has jumped from animals to humans. Factory farming — particularly intensive poultry and pig production — creates ideal conditions for zoonotic disease emergence: high animal density, genetic uniformity, stress-weakened immune systems, and routine antibiotic use that selects for resistant strains. COVID-19, H5N1 avian influenza, H1N1 swine flu, and SARS all have direct or indirect links to intensive animal agriculture.
Sentience: The capacity to have subjective experiences — to feel pain, pleasure, fear, and wellbeing. The scientific consensus is that all vertebrates and many invertebrates are sentient. EU law recognises animal sentience under Article 13 of the Treaty on the Functioning of the European Union (2009). The ethical case against factory farming rests primarily on sentience: if animals can suffer, causing unnecessary suffering requires justification.
Overton window: The range of ideas considered politically acceptable to discuss at a given moment. Currently: "improve factory farming conditions" is inside the window. "End factory farming" is outside it. The window moves when credible institutions, data, and public momentum shift what is considered reasonable. FFF exists partly to move the Overton window by making zero a credible, measurable, and dated goal rather than an activist slogan.
Precision fermentation: A biotechnology process that uses microorganisms (yeast, bacteria, fungi) to produce specific proteins, fats, and other compounds identical to those found in animal products — without animals. Examples: animal-free whey protein, casein, egg white, and haem. Unlike plant-based meat (which mimics animal products) or cultivated meat (which grows animal cells), precision fermentation produces the actual molecules at industrial scale. Currently at early commercial stage; cost reduction is the primary challenge.
Stocking density: The number of animals per unit of space in a farming system, typically expressed as kg of live animal weight per square metre (kg/m²). Current EU law permits broiler chickens at up to 42kg/m² with derogation — equivalent to approximately 20 chickens in 1m². The Better Chicken Commitment sets a maximum of 30kg/m². Stocking density is one of the primary determinants of animal welfare in intensive systems.
Paradigm shift: A fundamental change in the assumptions and structures underlying a system — not an incremental improvement within the existing system. Ending factory farming requires a paradigm shift, not just better regulation: the true cost of meat must be priced in, viable alternatives must reach price parity, a just transition must make political change viable, and institutional capital must treat factory farming as a stranded asset. Incremental welfare improvements are necessary but not sufficient.

Key statistics ▶

Key papers & studies ▶

Harrison, R. (1964). Animal Machines.

The book that created the modern farm animal welfare movement. First systematic investigation of factory farming conditions.
Brambell, F.W.R. (1965). Report of the Technical Committee to Enquire into the Welfare of Animals.

Set out the basic freedoms that the UK Farm Animal Welfare Council later formalised as the Five Freedoms (1979). Still the global benchmark for welfare assessment.
Singer, P. (1975). Animal Liberation. HarperCollins.

The philosophical foundation of the modern animal rights movement. Coined speciesism as a concept. Over 500,000 copies sold.
FAO. (2006). Livestock's Long Shadow.

UN Food and Agriculture Organization report estimating livestock at 18% of global GHG emissions (FAO revised this to 14.5% in 2013). The study that made agricultural emissions a mainstream policy concern.
Willett, W. et al. (2019). Food in the Anthropocene: the EAT-Lancet Commission. The Lancet, 393(10170), 447-492.

The most cited study on planetary health diets. Recommends 30kg/year legume consumption (vs current EU average of 7kg) and dramatic reduction in animal product consumption.
FAO. (2023). The State of Food and Agriculture 2023: Revealing the true cost of food to transform agrifood systems.

First FAO flagship report applying true cost accounting across 154 countries; estimates the global hidden costs of agrifood systems at at least USD 10 trillion (2020 PPP) per year. https://www.fao.org/agrifood-economics/publications/detail/en/c/1661488/
Šimčikas, S. (2023). Is the percentage of animals factory farmed increasing? Rethink Priorities.

The most rigorous publicly available analysis of factory farming prevalence trends. Used as a primary source for FFF's global counter methodology.
Sentience Institute. (2019). Global farmed & factory farmed animals estimates.

The reference estimates behind FFF's counter: ~31B land animals farmed at any time, 74% factory farmed (~23B), plus 38.8–215.9B farmed fish. https://www.sentienceinstitute.org/global-animal-farming-estimates
Ritchie, H. (2023). How many animals are factory-farmed? Our World in Data.

Independent synthesis of the Sentience Institute estimates: ~23B land animals on factory farms at any time; ~94% of all livestock including fish. https://ourworldindata.org/how-many-animals-are-factory-farmed
Šimčikas, S. (2019). Corporate campaigns affect 9 to 120 years of chicken life per dollar spent. Rethink Priorities.

The empirical benchmark for intervention cost-effectiveness — the evidence base for FFF's leverage weighting. https://rethinkpriorities.org/research-area/corporate-campaigns-affect-9-to-120-years-of-chicken-life-per-dollar-spent/
Anthis, J. R. (2018). The End of Animal Farming. Beacon Press.

The strategic roadmap: four stages (Foundation, Revolution, Stigmatisation, Follow-Through), institutional over individual change. The closest intellectual precedent to FFF.
Garcés, L. (2024). Transfarmation: The Movement to Free Us from Factory Farming. Island Press.

The key text on just transition — farmers converting out of factory farming. Foundational for Pillar 7.
BBFAW. (2024). Business Benchmark on Farm Animal Welfare 2024 Annual Report.

The most comprehensive annual assessment of corporate farm animal welfare performance. 150 companies. Key finding: 93% score E or F on actual delivery.

Ecosystem — organisations by pillar ▶

Know an organisation, study, or dataset that should be here? FFF is built on open knowledge. If something is missing, wrong, or should be added — contribute@factoryfarmfall.org

23B	Land animals in factory farms at any given time (74% of ~31B farmed) — plus est. 39–216B farmed fish · Sentience Institute 2019 / Our World in Data 2023
80B	Farmed land animals slaughtered annually, all farming systems · FAO 2023
93%	of BBFAW-assessed companies score E or F on actual welfare delivery · BBFAW 2024
73%	of global antibiotics used in animal agriculture · WHO 2023
1.3M	people killed by AMR annually · projected 10M by 2050 · WHO 2023
14%	of global GHG emissions from livestock (14.5%) · FAO (2013), Tackling Climate Change Through Livestock. The earlier FAO Livestock's Long Shadow (2006) estimated 18%.
$1.8B	invested in alternative protein globally in 2024 — vs $300B+ in conventional animal agriculture · GFI 2024
28%	of EU consumers report reducing animal product consumption · Eurobarometer 2023
320	companies signed Better Chicken Commitment globally · Chicken Watch 2024

Every animal. Every action. The road to zero.

8 pillars. Every solution. One goal.

From the first broiler shed to zero.

Scientific references, key statistics & ecosystem.

Why this exists.