The Evidence

Citation Appendix

Every source cited across the project's published documents, in one place.

The Trust Collective framework rests on published, peer-reviewed research wherever possible. Where it extends beyond the existing literature, it says so explicitly. This appendix collects every source cited across the project's published essays and technical documents. Citations are organized by topic. Each entry includes the claim it supports and the documents where it appears.

Original Trust Collective analyses — the project's own derivations that require independent verification — are marked with an asterisk (*) and listed separately at the end.

All figures are first-order estimates. Peer review is invited. The direction of honest correction is always toward longer timescales and greater complexity.

Energy

Applied Energy. (2024). Benchmarking energy efficiency in vertical farming. Applied Energy. — Vertical farm energy benchmarks: 850–1,150 kWh/m²/yr for lettuce.

Clean Air Task Force. (2024). Superhot Rock Energy: A Vision for Firm, Global Zero-Carbon Energy. CATF. — 1% of superhot rock potential equals 63 TW. Geothermal as unlimited baseload energy source.

Glassley, W. E. (2014). Geothermal Energy: Renewable Energy and the Environment (2nd ed.). CRC Press. — Standard geothermal gradient: approximately 25–30°C/km.

IEA. (2024). The Future of Geothermal Energy. International Energy Agency, Paris. — Geothermal enhanced geothermal system (EGS) potential: approximately 42 TW at less than 5 km depth; approximately 600 TW at less than 8 km depth.

IEA. (2025). Global Energy Review 2025. International Energy Agency, Paris. — Current global primary energy consumption: approximately 18 TW. Global energy-related CO₂ emissions: 37.8 GtCO₂ in 2024.

Masudi, A. F., et al. (2024). Earth-sheltered buildings: A review of modeling, energy conservation, daylighting, and noise aspects. Journal of Cleaner Production, 472, 143482. — Comprehensive review confirming significant energy conservation from ground thermal mass.

RMI. (2024). The Incredible Inefficiency of the Fossil Energy System. Rocky Mountain Institute. — Two-thirds of all primary fossil energy is wasted before delivering useful work.

Staniec, M., & Nowak, H. (2011). Analysis of the earth-sheltered buildings' heating and cooling energy demand depending on type of soil. Archives of Civil and Mechanical Engineering, 11(1), 217–230. — Earth-sheltered buildings achieve 25–50% energy savings. Cooling reductions up to 50%.

U.S. Department of Energy. (2014). Premium Efficiency Motor Selection and Application Guide. DOE/GO-102014-4107. — Electric motor efficiency: 85–95% depending on size and type.

Carbon Sequestration — Ecosystem Restoration

Alongi, D. M. (2014). Carbon cycling and storage in mangrove forests. Annual Review of Marine Science, 6, 195–219. — Mangrove sequestration rates: highest per-hectare of any biome, approximately 12 tCO₂/ha/yr.

Bernal, B., Murray, L. T., & Pearson, T. R. H. (2018). Global carbon dioxide removal rates from forest landscape restoration activities. Carbon Balance and Management, 13, 22. — Forest landscape restoration removal rates.

Conant, R. T., et al. (2017). Grassland management impacts on soil carbon stocks. Ecological Applications, 27(7), 2127–2142. — Grassland and savanna sequestration rates.

FAO. (2024). Land statistics 2001–2023. FAOSTAT Analytical Brief No. 107. — Cropland: 1.6 billion hectares; pasture: 3.2 billion hectares; total agricultural land: 4.8 billion hectares.

Günther, A., et al. (2020). Prompt rewetting of drained peatlands reduces climate warming. Nature Communications, 11, 1644. — Peatland rewetting sequestration rates.

Lewis, S. L., et al. (2025). Limited carbon sequestration from global ecosystem restoration. Nature Geoscience. — Maximum restoration potential: 96.9 GtC total through 2100 at 15–30% restoration.

Loisel, J., et al. (2014). A database and synthesis of northern peatland soil properties. The Holocene, 24(9), 1028–1042. — Wetland and peatland sequestration rates. Never-saturating carbon accumulation.

Mo, L., et al. (2023). Integrated global assessment of the natural forest carbon potential. Nature, 624, 92–101. — 138 GtC conservation potential in existing degraded forests.

Pan, Y., et al. (2011). A large and persistent carbon sink in the world's forests. Science, 333(6045), 988–993. — Global forest carbon sink estimates.

Poore, J., & Nemecek, T. (2018). Reducing food's environmental impacts through producers and consumers. Science, 360(6392), 987–992. — Livestock uses 80% of agricultural land for 18% of calories.

Schmitz, O. J., et al. (2023). Trophic rewilding can expand natural climate solutions. Nature Climate Change. — Rewilding nine key species: an additional 6.4 GtCO₂/yr sequestration enhancement.

Supplemental Carbon Removal

Beerling, D. J., et al. (2020). Potential for large-scale CO₂ removal via enhanced rock weathering with croplands. Nature, 583, 242–248. — Enhanced weathering: 0.5–2.0 GtCO₂/yr by 2050.

Fu, J., et al. (2024). Storing CO₂ while strengthening concrete. Communications Materials. — Carbonation curing: 45% sequestration efficiency with no strength loss.

Huang, Z., et al. (2025). Global CO₂ uptake by cement carbonation 1928–2024. Earth System Science Data. — Current global cement carbonation: 0.86 GtCO₂/yr.

Keith, D. W., Holmes, G., St. Angelo, D., & Heidel, K. (2018). A process for capturing CO₂ from the atmosphere. Joule, 2(8), 1573–1594. — First published process design for industrial-scale direct air capture. Cost: $94–$232 per tonne CO₂.

National Academies of Sciences, Engineering, and Medicine. (2019). Negative Emissions Technologies and Reliable Sequestration: A Research Agenda. The National Academies Press. — Direct air capture energy requirements: 4–6 GJ per tonne CO₂.

Climate Feedbacks

Clark, P. U., et al. (2016). Consequences of twenty-first-century policy for multi-millennial climate and sea-level change. Nature Climate Change, 6, 360–369. — Deep ocean equilibration: 500–1,000 years.

Friedlingstein, P., et al. (2024). Global Carbon Budget 2024. Earth System Science Data, 17. — Ocean sink: 2.9 GtC/yr. Cumulative emissions since 1850: approximately 2,650 GtCO₂.

Holzer, M., & DeVries, T. (2022). Anthropogenic carbon in the ocean. Nature. — Ocean outgassed approximately 160 PgC natural carbon while absorbing approximately 350 PgC anthropogenic carbon.

IPCC. (2019). Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC). — Ocean has taken up more than 90% of the excess heat in the climate system.

IPCC. (2021). Climate Change 2021: The Physical Science Basis. Working Group I. — Ocean warming accounted for 91% of heating in the climate system.

International Cryosphere Climate Initiative. (2025). State of the Cryosphere 2025. — Over 30% of Arctic permafrost region now a net carbon source.

Jones, C. D., et al. (2016). Simulating the Earth system response to negative emissions. Environmental Research Letters, 11, 095012. — Published perturbation airborne fraction (PAF) values: 0.4–0.7 over multi-century timescales.

Schuur, E. A. G., et al. (2022). Permafrost and climate change: Carbon cycle feedbacks from the warming Arctic. Annual Review of Environment and Resources, 47, 343–371. — Permafrost feedback: 150–250 GtCO₂e by 2100.

Tokarska, K. B., & Zickfeld, K. (2015). The effectiveness of net negative carbon dioxide emissions in reversing anthropogenic climate change. Environmental Research Letters, 10, 094013. — Removal efficiency decreases as total negative emissions increase.

Yuan, K., et al. (2024). Boreal–Arctic wetland methane emissions. Nature Climate Change, 14, 282–288. — Arctic methane emissions increased 9% since 2002.

Zickfeld, K., et al. (2021). Asymmetry in the climate–carbon cycle response to positive and negative CO₂ emissions. Nature Climate Change, 11, 613–617. — Carbon cycle response is asymmetric: removing CO₂ is harder than adding it.

Sea Level Rise

IPCC. (2021). Climate Change 2021: The Physical Science Basis. Working Group I, Chapter 9 (Fox-Kemper, B., et al.). — By 2100: 0.28–0.55 m (SSP1-1.9) to 0.63–1.01 m (SSP5-8.5).

IPCC. (2023). AR6 Synthesis Report, Figure 3.4. — By 2300: 0.3–3.1 m (SSP1-2.6); 1.7–6.8 m (SSP5-8.5).

IPCC. (2019). Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC), Chapter 4. — Under RCP8.5: 2.3–5.4 m by 2300.

World Climate Research Programme. (2022). New high-end sea-level rise projections. — Paris-aligned scenario: 2.2–2.5 m by 2300.

Atmospheric CO₂ and Timeline

Carbon Dioxide Information Analysis Center (CDIAC). Atmospheric mass conversion factor. — 1 ppm CO₂ = 7.82 GtCO₂.

Met Office. (2026). CO₂ forecast for 2026. UK Met Office Hadley Centre. — Projected annual CO₂: approximately 429 ppm for 2026.

NOAA. (2024). Climate Change: Atmospheric Carbon Dioxide. National Oceanic and Atmospheric Administration. — Current CO₂: approximately 422.7 ppm (2024); 50%+ above pre-industrial 280 ppm.

Poorter, H., et al. (2022). C3 plant responses to low CO₂. New Phytologist. — C3 plant photosynthetic stress below 200 ppm; compensation point 35–60 ppm.

Tolbert, N. E., et al. (1995). O₂ and CO₂ compensation points of C3 plants. Proceedings of the National Academy of Sciences. — At 220 ppm, significant photorespiration occurs.

WMO. (2025). State of the Global Climate 2025. World Meteorological Organization. — Global temperature 1.44°C above pre-industrial (2025).

Solar Radiation Management

Borgue, O., & Hein, A. M. (2022). Space-based sunshade array design. Acta Astronautica. — Approximately 100,000 tonnes total mass for L1 shade array using ultra-thin polymeric films.

Duffey, A., et al. (2025). Low-altitude high-latitude SAI feasible with existing aircraft. Earth's Future. — Existing aircraft can reach lower stratosphere for initial stratospheric aerosol injection (SAI) deployment.

Feingold, G., et al. (2024). Marine cloud brightening viability and risks. Science Advances. — 31-scientist consensus roadmap. Marine cloud brightening (MCB) viable for coral reef and Arctic protection.

Harrison, D. P., et al. (2020). MCB proof of concept, Great Barrier Reef. Reef Restoration and Adaptation Program (RRAP). — Engineering viability of sea salt aerosol production demonstrated.

JBIS. (2023). Lunar Space Elevator as key technology. Journal of the British Interplanetary Society. — 48-ton system deployable via single heavy-lift launch.

Latham, J., et al. (2013). Sub-global MCB for coral protection. Philosophical Transactions of the Royal Society A. — MCB can ameliorate coral bleaching under doubled CO₂.

Parker, A., & Irvine, P. J. (2018). The risk of termination shock from solar geoengineering. Earth's Future, 6, 456–467. — Optimal phase-down rate: 0.1°C per decade; maximum safe: 0.3°C per decade.

Pearson, J., et al. (2005). Lunar Space Elevator. NASA NIAC Phase I Report. — Moon-anchored space elevator feasible with current materials (Zylon, Dyneema).

Penoyre, Z., & Sandford, E. (2019). The Spaceline: A practical space elevator alternative. arXiv preprint. — Moon-anchored tether feasible with existing polymer technology.

Smith, W. (2020). The cost of stratospheric aerosol injection through 2100. Environmental Research Letters, 15. — SAI cost: approximately $18 billion per year per °C avoided.

Ocean Interventions

Boor, G. K. H., et al. (2023). Do whales increase oceanic carbon removal? Frontiers in Marine Science. — Caveat: climate impact of whale restoration may be overstated. Ecosystem co-benefits remain valid.

Feng, E. Y., et al. (2020). Modeling artificial upwelling coral protection. Frontiers in Marine Science. — Artificial upwelling can prevent bleaching through 2099 under some scenarios.

Lavery, T. J., et al. (2010). Iron defecation by sperm whales stimulates carbon export. Proceedings of the Royal Society B. — Whale feces 10 million times richer in iron than seawater.

Roman, J., & McCarthy, J. J. (2010). The Whale Pump: Marine mammals enhance primary productivity via nutrient cycling. PLoS ONE. — Marine mammals enhance primary productivity through nutrient transport.

Sawall, Y., et al. (2020). Artificial upwelling coral bleaching mitigation. Frontiers in Marine Science. — Cold water pulses significantly reduce coral bleaching stress.

Transport and Land Use

PMC. (2022). Comprehensive review: implications of autonomous vehicles for urban planning. — Autonomous vehicles reduce parking demand 80–90%; dramatic fleet size reduction.

Scientific Reports. (2025). Autonomous vehicle fleet sizing with real trip data, Milan. — One shared autonomous vehicle replaces 12 private cars; 80–90% parking reduction.

Food System

Asseng, S., et al. (2020). Wheat yield potential in controlled-environment vertical farms. Proceedings of the National Academy of Sciences. — Indoor wheat: 220–600 times conventional yields.

CIP; Otazú, V. (2010). Manual on quality seed potato production using aeroponics. International Potato Center. — Potato and sweet potato yields in aeroponic systems: 40–50 kg/m²/yr/tier.

FAO. (2024). The State of Food Security and Nutrition in the World 2024. — Approximately 735 million chronically undernourished. Approximately 30–40% of food wasted.

Love, D. C., et al. (2015). Balancing supply and demand: commercial aquaponics production. Aquacultural Engineering. — Aquaponics fish yields: 3–6 kg/m²/yr.

United Nations. (2024). World Population Prospects: The 2024 Revision. Department of Economic and Social Affairs. — Population peaks at approximately 10.3 billion mid-2080s, then gradual decline.

Van Huis, A., et al. (2013). Edible insects: Future prospects for food and feed security. FAO Forestry Paper 171. — Black soldier fly larvae: 5–10 kg/m²/yr/tier.

Psychology

Cohen, S., Kamarck, T., & Mermelstein, R. (1983). A global measure of perceived stress. Journal of Health and Social Behavior, 24(4), 385–396. — Perceived Stress Scale: widely validated instrument for measuring subjective stress levels.

Gilbert, P. (2009). The Compassionate Mind: A New Approach to Life's Challenges. Constable & Robinson. — Three-system affect regulation model: threat/protection, drive/resource-seeking, care/soothing.

Gilbert, P. (2024). Threat, safety, safeness and social safeness: 30 years on. Chapter. — Social safeness as felt experience of reliable connection. Two-strategy framework: care-and-share versus control-and-hold.

Kahan, D. M. (2012). Ideology, motivated reasoning, and cognitive reflection. Judgment and Decision Making, 8, 407–424. — Cultural cognition: identity-protective reasoning overrides evidence.

McMillan, D. W., & Chavis, D. M. (1986). Sense of community: A definition and theory. Journal of Community Psychology, 14(1), 6–23. — Sense of Community Index: foundational framework for measuring community belonging.

Mullainathan, S., & Shafir, E. (2013). Scarcity: Why Having Too Little Means So Much. Times Books. — Scarcity produces cognitive tunneling: reduced bandwidth, temporal compression.

Global Emissions

EDGAR. (2025). Emissions Database for Global Atmospheric Research. European Commission, Joint Research Centre. — Global greenhouse gas emissions: 53.2 GtCO₂e/yr excluding land use.

Climate Change Tracker. (2025). Global emissions tracker. — Global greenhouse gas emissions: 56.4 GtCO₂e/yr including all sources.

Universal Provision

FAO. (2024). The State of Food Security and Nutrition in the World 2024. — Approximately 735 million chronically undernourished. Approximately 2.8 billion cannot afford a healthy diet.

OICA. (2024). World Motor Vehicle Production and Sales Statistics. — Global vehicle fleet: approximately 1.4 billion vehicles. Annual production: roughly 85 million vehicles per year.

UNESCO. (2024). Global Education Monitoring Report 2024. — Approximately 250 million children out of school. Roughly 770 million adults remain illiterate.

UNEP. (2024). Sustainability and Circularity in the Textile Value Chain. — Global textile production exceeds 113 million tonnes per year. Fast fashion produces roughly 100 billion garments per year.

UN-Habitat. (2024). World Cities Report 2024. — Approximately 1.6 billion people live in inadequate housing globally. Roughly 150 million are fully homeless.

USGS. (2024). Mineral Commodity Summaries 2024. / World Steel Association. (2024). World Steel in Figures 2024. — Annual global cement production exceeds 4.4 billion tonnes. Steel exceeds 1.9 billion tonnes.

WHO. (2023). Global Health Workforce Statistics. — Approximately 65 million health workers globally.

WHO. (2023). Universal Health Coverage Global Monitoring Report. — Roughly half the world's population lacks access to essential health services.

Conservation Biology

Dinerstein, E., et al. (2019). A Global Deal for Nature: Guiding principles, milestones, and targets. Science Advances, 5(4), eaaw2869. — Global Deal for Nature: 50% total protection target.

Locke, H., et al. (2019). Nature Needs Half: A necessary and hopeful new agenda for protected areas. Parks, 25(2), 7–16. — Scientific foundation for 50% minimum habitat threshold.

Wilson, E. O. (2016). Half-Earth: Our Planet's Fight for Life. W. W. Norton. — Species-area power law: below 50% habitat, extinction accelerates nonlinearly.

Human Impact and Land Use

Ellis, E. C., et al. (2010). Anthropogenic transformation of the biomes, 1700 to 2000. Global Ecology and Biogeography, 19(5), 589–606. — 75–80% of ice-free land affected by human activity.

FAO. (2021). Land Use in Agriculture by the Numbers. — Global agricultural land use: approximately 48–50 million km² of habitable land used for agriculture.

Sanderson, E. W., et al. (2002). The Human Footprint and the Last of the Wild. BioScience, 52(10), 891–904. — 83% of terrestrial surface directly influenced by humans.

Venter, O., et al. (2016). Sixteen years of change in the global terrestrial human footprint. Nature Communications, 7, 12558. — 75% of land under measurable human pressure.

Societal Stability

Herrington, G. (2021). Update to limits to growth: Comparing the World3 model with empirical data. Journal of Industrial Ecology, 25(3), 614–626. — Limits to Growth BAU2 scenario aligns with empirical data. Decline trajectory beginning approximately 2030–2040.

Kemp, L., et al. (2022). Climate Endgame: Exploring catastrophic climate change scenarios. Proceedings of the National Academy of Sciences, 119(34), e2108146119. — Catastrophic and existential climate scenarios underexplored.

Nebel, A., et al. (2024). Recalibrating Limits to Growth: An update of the World3 model. Journal of Industrial Ecology. — Stability window narrows to 15–30 years.

Universal Basic Income Evidence

Banerjee, A., et al. (2019). GiveDirectly analysis. See also: GiveDirectly. (2023). Early findings from the world's largest UBI study (Kenya, 21,000+ participants). — No evidence of UBI promoting laziness. Positive effects on income, savings, and entrepreneurship.

Kangas, O., et al. (2020). Evaluation of the Finnish Basic Income Experiment. Ministry of Social Affairs and Health. — Recipients reported higher life satisfaction (7.3/10) and lower stress and depression versus controls.

Tubbs, M., et al. (2021). SEED Final Report. Stockton Economic Empowerment Demonstration. — Full-time employment increased among UBI recipients.

Economics and Labor

Srnicek, N., & Williams, A. (2015). Inventing the Future: Postcapitalism and a World Without Work. Verso Books. — Full automation plus UBI requires structural transformation, not merely a payment floor.

Standing, G. (2011). The Precariat: The New Dangerous Class. Bloomsbury Academic. — Precariat as new class category: people living with chronic insecurity, lacking occupational identity.

Governance and Democracy

Bureau of Justice Statistics. (2018). 2018 Update on Prisoner Recidivism: A 9-Year Follow-up Period (2005–2014). U.S. Department of Justice. — Approximately 76% US recidivism rate within 5 years.

Chenoweth, E., & Stephan, M. J. (2011). Why Civil Resistance Works: The Strategic Logic of Nonviolent Conflict. Columbia University Press. — Nonviolent movements achieving 3.5% active participation succeeded in nearly every documented case.

Farrell, D. M., Suiter, J., & Harris, C. (2019). 'Systematizing' constitutional deliberation: the 2016–18 citizens' assembly in Ireland. Irish Political Studies, 34(1), 113–123. — 99 randomly selected citizens voted 80%+ for climate recommendations blocked in normal democratic process.

Norwegian Correctional Service. (2023). Recidivism statistics. — Approximately 20% Norway recidivism rate, demonstrating that restorative justice within supportive structures dramatically outperforms punitive systems.

World Resources Institute. (2025). Citizens' Assemblies and the Climate Emergency. — Early institutionalization into regular decision-making showed advantages over one-off processes.

Climate Policy and Economics

Harvard Environmental Economics Program. Misleading talk about decoupling CO₂ emissions and economic growth. — Decoupling narrative described as misleading. No significant evidence that green growth can decouple growth from greenhouse gas emissions.

UN Environment Programme. (2025). Emissions Gap Report 2025. — Current trajectory: 2.3–2.8°C warming. Without immediate action, Paris targets unachievable.

World Bank. (2024). State and Trends of Carbon Pricing 2024. — Carbon pricing covers approximately 24% of global emissions.

Infrastructure and Data

EPA. (2024). Underground Storage Tanks (UST) program data. U.S. Environmental Protection Agency. — Approximately 542,000 active underground storage tanks in the United States.

USGS. Mississippi River watershed statistics. U.S. Geological Survey. — Mississippi watershed drains approximately 41% of the contiguous United States.

World Bank. (2024). Rural Population (% of total population). World Development Indicators. — Approximately 44% of world population lives in rural areas.

Original Trust Collective Analyses

The following are original analyses produced by the Trust Collective project. They represent the project's own derivations and require independent verification. Each is tagged in the technical documents with appropriate confidence levels.

* Bottom-up sectoral energy budget. TC total sustained demand: approximately 20–27 TW; peak approximately 28–35 TW. Derived from sector-by-sector analysis.

* Four-zone food system volume-based derivation. Underground food: Zone 1 floor area 32,000–63,000 km² (moderate approximately 45,000 km²) plus Zone 2 surface 2–4 million km².

* Time-varying sequestration curve with land availability ramp-up. Composite curve: peak 6–9 GtCO₂/yr baseline during years 30–80, declining over centuries. Three-wave land liberation model.

* Fire regime and natural disturbance integration. Landscape-level carbon rates in fire-adapted biomes; mosaic age classes maintain non-zero sequestration.

* Total CO₂ budget derivation. Approximately 1,500–2,800 GtCO₂ total requiring removal at 280 ppm target. Range depends on perturbation airborne fraction (PAF) and transition speed.

* TC-mitigated sea level scenario. TC floor: approximately 2.0–2.2 m permanent above 2024 baseline. Unmitigated: 7–12 m.

* Land availability ramp-up curve. 79–90% minimum nature framing. Three-wave transition model: pasture first, cropland second, social tail third.

* SRM moderate overshoot cooling concept. Deliberate over-cooling 0.5–1.0°C below natural trajectory during peak drawdown to accelerate ocean heat release. First framework to propose this.

* Ocean outgassing rate during rapid atmospheric drawdown. Approximately 4 GtCO₂/yr resistance (range 2–6). Reverses as atmospheric CO₂ drops. Specific rate during rapid drawdown is genuinely new territory.

This appendix is a living document. As the framework develops and new citations are added, this list will be updated. For questions, challenges, or collaboration inquiries, visit trustcollectiveproject.org.

From the Trust Collective Project

The thread grows brighter with every person who chooses it.

🌱