A learning tool for curious builders

Problems are soluble.

A dated map of major human problems and the solution domains they make worth understanding. Start with the problem, follow the evidence, and then look for the bottleneck nobody has solved well.

Editorial snapshot2026-09-2010 problems · 13 opportunities

Compounding record

Snapshot history

Every published edition is preserved. History begins with the current edition; change summaries and movement views unlock as later editions are added through the editorial review process.

2026-09-202026-09-20 editorial snapshot · 1.0.0CurrentInspect edition

No comparison yet—there is no earlier edition to compare against.

How to use it

Need first. Opportunity second.

Each problem is scored on human severity, scale / reach, trajectory, neglectedness, and tractability. Each opportunity is scored on addressable need, intervention evidence, delivery readiness, adoption momentum, and capital accessibility. Inputs are ordinal 1–5 judgments, weighted, converted to 0–100, and rounded to the nearest five.

Problem weights: Human severity 30% · Scale / reach 25% · Trajectory 20% · Neglectedness 15% · Tractability 10%
Opportunity weights: Addressable need 25% · Intervention evidence 25% · Delivery readiness 20% · Adoption momentum 15% · Capital accessibility 15%
Freshness: Current ≤12 months · review due 12–24 · stale >24
Confidence: Evidence quality, definition clarity, and relevance—not certainty.

Compare the landscape

Problems and solution opportunities

Scores are editorial, ordinal comparisons—not measurements of importance, probability, or market size.

CategoryConfidenceFreshnessSort by

Showing 10 of 10 problems

Environment

Air pollution

90editorial score

Ambient and household air pollution expose nearly everyone and drive major preventable mortality.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Premature mortalityAbout 7 million premature deaths annuallyAs of/reference: Annual estimate on page reviewed 2026 · World Health Organization

Population exposure99% breathe air exceeding WHO guideline limitsAs of/reference: WHO data on page reviewed 2026 · World Health Organization

Evidence, score, and limitations

Editorial rationale

Near-universal exposure and severe health effects outweigh uneven measurement and highly local sources.

Confidence: The WHO page is authoritative, but its displayed global estimates do not state one shared reference year.

Score dimensions

Human severity5 / 5
Scale / reach5 / 5
Trajectory4 / 5
Neglectedness3 / 5
Tractability4 / 5

Evidence sources

Air pollutionWorld Health Organization · publication/reference: Estimate year not stated; page reviewed 2026-09-20 · source reviewed: 2026-09-20
Air pollutionWorld Health Organization · publication/reference: Estimate year not stated; page reviewed 2026-09-20 · source reviewed: 2026-09-20

Limitations and unknowns

Attribution methods and the mix of household versus ambient exposure differ across settings.

Mapped solution opportunities

Clean energy and cooking
Air-quality monitoring and exposure reduction
Healthy built environments

Environment

Climate-related health risk

90editorial score

Climate hazards increasingly threaten health through heat, disease, food, water, and disrupted care systems.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Susceptible population3.6 billion people live in areas highly susceptible to climate changeAs of/reference: WHO fact sheet reviewed 2026 · World Health Organization

Expected additional mortalityApproximately 250,000 additional deaths per year from selected causesAs of/reference: 2030–2050 projection · World Health Organization

Evidence, score, and limitations

Editorial rationale

Exposure is vast and worsening, while outcomes depend on uncertain emissions, adaptation, and local vulnerability pathways.

Confidence: WHO directly states the exposure estimate and bounded projection, but future outcomes depend on scenarios and adaptation.

Score dimensions

Human severity5 / 5
Scale / reach5 / 5
Trajectory5 / 5
Neglectedness3 / 5
Tractability2 / 5

Evidence sources

Climate change and healthWorld Health Organization · publication/reference: 2023-10-12 · source reviewed: 2026-09-20
Climate change and healthWorld Health Organization · publication/reference: 2023-10-12 · source reviewed: 2026-09-20

Limitations and unknowns

The cited mortality projection covers selected causes rather than the full health burden and is scenario-dependent.

Mapped solution opportunities

Climate-resilient health, food, water, and housing systems
Clean energy and cooking
Resilient and affordable food systems
Safe water treatment and distribution

Basic needs

Hunger and unaffordable nutrition

90editorial score

Hunger persists while healthy diets remain unaffordable for a much larger population.

Confidence: High
Freshness: Review due
Reviewed: 2026-09-20

HungerAbout 733 million people faced hungerAs of/reference: 2023 · Food and Agriculture Organization of the United Nations

Healthy-diet affordabilityMore than 2.8 billion people could not afford a healthy dietAs of/reference: 2022 · Food and Agriculture Organization of the United Nations

Evidence, score, and limitations

Editorial rationale

The food-access gap is enormous and crisis-sensitive, with intertwined production, distribution, income, and affordability causes.

Confidence: FAO's SOFI release states both estimates, their years, and the multi-agency reporting context.

Score dimensions

Human severity5 / 5
Scale / reach5 / 5
Trajectory4 / 5
Neglectedness4 / 5
Tractability3 / 5

Evidence sources

Hunger numbers stubbornly high for three consecutive years as global crises deepen: UN reportFood and Agriculture Organization of the United Nations · publication/reference: 2024-07-24 · source reviewed: 2026-09-20
Hunger numbers stubbornly high for three consecutive years as global crises deepen: UN reportFood and Agriculture Organization of the United Nations · publication/reference: 2024-07-24 · source reviewed: 2026-09-20

Limitations and unknowns

Food insecurity changes with prices and conflict, and global totals do not identify the best local intervention.

Mapped solution opportunities

Resilient and affordable food systems
Financial inclusion and social-protection delivery
Climate-resilient health, food, water, and housing systems

Health

Noncommunicable disease burden

90editorial score

Chronic diseases dominate global mortality and impose long-duration care needs.

Confidence: High
Freshness: Current
Reviewed: 2026-09-20

Global mortalityAt least 43 million deaths, equal to 75% of non-pandemic-related deathsAs of/reference: 2021 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The mortality burden is exceptionally large, while prevention and care delivery make part of the burden tractable.

Confidence: WHO provides a direct global fact sheet with definitions and a 2021 reference year.

Score dimensions

Human severity5 / 5
Scale / reach5 / 5
Trajectory4 / 5
Neglectedness3 / 5
Tractability4 / 5

Evidence sources

Noncommunicable diseasesWorld Health Organization · publication/reference: 2025-09-25 · source reviewed: 2026-09-20

Limitations and unknowns

Disease mix, exposure, diagnosis, and care access vary substantially by country and income.

Mapped solution opportunities

Preventive and chronic-care delivery
Healthy built environments

Basic needs

Adequate housing shortage

85editorial score

Urbanization and affordability pressures create a vast need for adequate, accessible housing.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Adequate housing need3 billion people will need adequate housing by 2030—equivalent to 96,000 affordable and accessible units per dayAs of/reference: 2030 estimate · United Nations Human Settlements Programme

Evidence, score, and limitations

Editorial rationale

Housing affects health, safety, and opportunity, while the headline need estimate combines varied local shortages and standards.

Confidence: UN-Habitat states the estimate directly, but the page does not publish a detailed model or one recent publication date for it.

Score dimensions

Human severity4 / 5
Scale / reach5 / 5
Trajectory5 / 5
Neglectedness3 / 5
Tractability3 / 5

Evidence sources

HousingUnited Nations Human Settlements Programme · publication/reference: 2030 need estimate; publication date not stated · source reviewed: 2026-09-20

Limitations and unknowns

Definitions, land constraints, tenure, affordability, and unit quality differ sharply across locations.

Mapped solution opportunities

Affordable housing delivery and retrofit
Climate-resilient health, food, water, and housing systems

Economic & social systems

Extreme poverty

85editorial score

Hundreds of millions live below the World Bank's global extreme-poverty line.

Confidence: Medium
Freshness: Current
Reviewed: 2026-09-20

Extreme-poverty countAround 831 million people lived below $3.00 per day in 2021 PPP termsAs of/reference: World Bank current methodology reviewed 2026 · World Bank Group

Evidence, score, and limitations

Editorial rationale

Poverty compounds health, education, housing, and resilience constraints, but a global threshold cannot express every deprivation.

Confidence: The World Bank directly reports the count and methodology, but poverty estimates are revised as surveys and PPP methods change.

Score dimensions

Human severity5 / 5
Scale / reach4 / 5
Trajectory4 / 5
Neglectedness4 / 5
Tractability3 / 5

Evidence sources

Poverty overviewWorld Bank Group · publication/reference: Fall 2025 update; 2021 PPP methodology · source reviewed: 2026-09-20

Limitations and unknowns

Survey gaps, purchasing-power revisions, and non-income deprivation limit any single global threshold.

Mapped solution opportunities

Financial inclusion and social-protection delivery
Productive infrastructure and job access
Foundational learning tools and delivery

Human development

Learning poverty

85editorial score

A majority of children in low- and middle-income countries cannot read and understand a simple text by age ten.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Learning poverty70% of 10-year-olds in low- and middle-income countries could not read and understand a simple textAs of/reference: 2022 update · World Bank Group

Evidence, score, and limitations

Editorial rationale

Foundational learning shapes later opportunity, but measurement coverage and pandemic-era disruption add uncertainty.

Confidence: The World Bank links the 2022 update directly, while cross-country assessment coverage and comparability remain material limitations.

Score dimensions

Human severity4 / 5
Scale / reach5 / 5
Trajectory4 / 5
Neglectedness4 / 5
Tractability4 / 5

Evidence sources

What is Learning Poverty?World Bank Group · publication/reference: 2021-04-28; metric from 2022 update · source reviewed: 2026-09-20

Limitations and unknowns

Assessment coverage is incomplete, and one literacy threshold does not represent the full quality of education.

Mapped solution opportunities

Foundational learning tools and delivery
Productive infrastructure and job access

Basic needs

Unsafe drinking water

85editorial score

Billions still lack drinking water that is on premises, available when needed, and free from contamination.

Confidence: High
Freshness: Review due
Reviewed: 2026-09-20

Safely managed service gap2.2 billion people lacked safely managed drinking-water servicesAs of/reference: 2022 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The affected population is vast and the service definition is concrete, while infrastructure delivery remains context-specific.

Confidence: WHO states the service definition, global count, and 2022 reference year directly.

Score dimensions

Human severity5 / 5
Scale / reach5 / 5
Trajectory3 / 5
Neglectedness4 / 5
Tractability4 / 5

Evidence sources

Drinking-waterWorld Health Organization · publication/reference: 2023-09-13 · source reviewed: 2026-09-20

Limitations and unknowns

National figures can conceal reliability, affordability, and water-quality differences within communities.

Mapped solution opportunities

Safe water treatment and distribution
Distributed sanitation and waste treatment
Climate-resilient health, food, water, and housing systems

Basic needs

Inadequate sanitation

80editorial score

Large populations lack basic sanitation, with severe health and dignity consequences.

Confidence: High
Freshness: Review due
Reviewed: 2026-09-20

Basic sanitation gapMore than 1.5 billion people lacked basic sanitation; 419 million practiced open defecationAs of/reference: 2022 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The need is widespread and consequential, and delivery requires both infrastructure and sustained service operations.

Confidence: WHO supplies directly stated global counts and definitions for 2022.

Score dimensions

Human severity5 / 5
Scale / reach4 / 5
Trajectory3 / 5
Neglectedness4 / 5
Tractability4 / 5

Evidence sources

SanitationWorld Health Organization · publication/reference: 2024-03-22 · source reviewed: 2026-09-20

Limitations and unknowns

A toilet count alone does not measure safe containment, treatment, maintenance, or equitable access.

Mapped solution opportunities

Distributed sanitation and waste treatment
Safe water treatment and distribution

Health

Population ageing and care capacity

80editorial score

Rapid population ageing increases demand for healthy-ageing systems, care, accessibility, and social participation.

Confidence: High
Freshness: Current
Reviewed: 2026-09-20

Population shift1 in 6 people globally will be aged 60 years or overAs of/reference: 2030 projection · World Health Organization

Evidence, score, and limitations

Editorial rationale

The demographic shift is highly certain and global, though ageing is not itself a problem and outcomes depend on system design.

Confidence: WHO provides a recent direct fact sheet and a clearly dated demographic projection.

Score dimensions

Human severity3 / 5
Scale / reach5 / 5
Trajectory5 / 5
Neglectedness3 / 5
Tractability4 / 5

Evidence sources

Ageing and healthWorld Health Organization · publication/reference: 2025-10-01 · source reviewed: 2026-09-20

Limitations and unknowns

The relevant gap is healthy ageing and support capacity, not age; needs vary by health, wealth, family structure, and place.

Mapped solution opportunities

Assistive technology and caregiving capacity
Preventive and chronic-care delivery
Affordable housing delivery and retrofit

Health

Assistive technology and caregiving capacity

90editorial score

Expand tools, services, and workforce capacity that support autonomy and healthy ageing.

Confidence: High
Freshness: Current
Reviewed: 2026-09-20

Need signal—not market size1 in 6 people globally will be aged 60 years or over by 2030As of/reference: 2030 projection · World Health Organization

Evidence, score, and limitations

Editorial rationale

Demographic change makes capacity needs durable, but demand, payment, care quality, and workforce constraints differ widely.

Confidence: WHO provides a current demographic projection; the score is an editorial view of a diverse solution domain.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness4 / 5
Adoption momentum5 / 5
Capital accessibility4 / 5

Evidence sources

Ageing and healthWorld Health Organization · publication/reference: 2025-10-01 · source reviewed: 2026-09-20

Limitations and unknowns

Age is not a proxy for disability; preferences, informal care, regulation, reimbursement, and workforce needs vary.

Problems this could address

Population ageing and care capacity

Health

Preventive and chronic-care delivery

90editorial score

Improve prevention, early detection, continuity, and access for long-duration conditions.

Confidence: High
Freshness: Current
Reviewed: 2026-09-20

Need signal—not market sizeAt least 43 million NCD deaths in 2021As of/reference: 2021 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The need is enormous and care pathways are established, but delivery economics and access vary by health system.

Confidence: The need signal is direct WHO evidence; the opportunity score is an editorial comparison of the solution domain.

Score dimensions

Addressable need5 / 5
Intervention evidence5 / 5
Delivery readiness4 / 5
Adoption momentum4 / 5
Capital accessibility4 / 5

Evidence sources

Noncommunicable diseasesWorld Health Organization · publication/reference: 2025-09-25 · source reviewed: 2026-09-20

Limitations and unknowns

This index does not estimate revenue, reimbursement, adoption, or effectiveness for any specific intervention.

Problems this could address

Noncommunicable disease burden
Population ageing and care capacity

Basic needs

Affordable housing delivery and retrofit

85editorial score

Lower the cost and increase the pace, accessibility, and resilience of adequate housing.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market sizeUN-Habitat estimates demand equivalent to 96,000 affordable and accessible units per day through 2030As of/reference: 2030 estimate · United Nations Human Settlements Programme

Evidence, score, and limitations

Editorial rationale

The need is vast and tangible, while land, finance, permitting, infrastructure, and household affordability bind locally.

Confidence: UN-Habitat establishes the need estimate; it is not a revenue forecast and local feasibility varies.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness4 / 5
Adoption momentum4 / 5
Capital accessibility4 / 5

Evidence sources

HousingUnited Nations Human Settlements Programme · publication/reference: 2030 need estimate; publication date not stated · source reviewed: 2026-09-20

Limitations and unknowns

Unit delivery can fail affordability, location, tenure security, accessibility, or quality goals even when supply rises.

Problems this could address

Adequate housing shortage
Population ageing and care capacity

Environment

Air-quality monitoring and exposure reduction

85editorial score

Measure harmful air and reduce exposure through monitoring, filtration, and targeted controls.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market size99% of people breathe air exceeding WHO guideline limitsAs of/reference: WHO data on page reviewed 2026 · World Health Organization

Evidence, score, and limitations

Editorial rationale

Measurement can guide action and localized exposure reduction, while monitoring alone does not remove pollution sources.

Confidence: WHO provides the global exposure signal; effectiveness depends on whether tools lead to source reduction or protection.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness4 / 5
Adoption momentum4 / 5
Capital accessibility4 / 5

Evidence sources

Air pollutionWorld Health Organization · publication/reference: Estimate year not stated; page reviewed 2026-09-20 · source reviewed: 2026-09-20

Limitations and unknowns

Sensor quality, maintenance, representativeness, and the path from information to reduced exposure vary.

Problems this could address

Air pollution

Environment

Clean energy and cooking

85editorial score

Replace high-emission energy and cooking sources with cleaner, reliable alternatives.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market sizeAbout 7 million premature deaths annually are associated with ambient and household air pollutionAs of/reference: Annual estimate on page reviewed 2026 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The domain addresses both health exposure and climate drivers, but affordability and infrastructure constrain deployment.

Confidence: WHO establishes the pollution burden; this broad opportunity spans technologies and policy contexts.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness4 / 5
Adoption momentum4 / 5
Capital accessibility4 / 5

Evidence sources

Air pollutionWorld Health Organization · publication/reference: Estimate year not stated; page reviewed 2026-09-20 · source reviewed: 2026-09-20

Limitations and unknowns

Fuel stacking, grid reliability, household behavior, and life-cycle emissions complicate outcome measurement.

Problems this could address

Air pollution
Climate-related health risk

Basic needs

Distributed sanitation and waste treatment

85editorial score

Expand safe containment, collection, treatment, hygiene, and resource recovery.

Confidence: High
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market sizeMore than 1.5 billion people lacked basic sanitation in 2022As of/reference: 2022 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The need is severe and service outcomes are measurable, but infrastructure without safe operations can fail.

Confidence: WHO provides a direct need metric; the opportunity remains a broad delivery domain rather than a sized market.

Score dimensions

Addressable need5 / 5
Intervention evidence5 / 5
Delivery readiness4 / 5
Adoption momentum3 / 5
Capital accessibility3 / 5

Evidence sources

SanitationWorld Health Organization · publication/reference: 2024-03-22 · source reviewed: 2026-09-20

Limitations and unknowns

Usage, emptying, treatment, worker safety, and affordability must be evaluated across the full service chain.

Problems this could address

Inadequate sanitation
Unsafe drinking water

Economic & social systems

Financial inclusion and social-protection delivery

85editorial score

Improve access to useful financial services and delivery of income protection during shocks.

Confidence: Medium
Freshness: Current
Reviewed: 2026-09-20

Need signal—not market sizeAround 831 million people live below $3.00 per day in 2021 PPP termsAs of/reference: World Bank current methodology reviewed 2026 · World Bank Group

Evidence, score, and limitations

Editorial rationale

The poverty and food-affordability needs are large, but access, consumer protection, fiscal capacity, and impact vary.

Confidence: The World Bank establishes the poverty need; the opportunity contains both public and private delivery models.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness4 / 5
Adoption momentum4 / 5
Capital accessibility4 / 5

Evidence sources

Poverty overviewWorld Bank Group · publication/reference: Fall 2025 update; 2021 PPP methodology · source reviewed: 2026-09-20

Limitations and unknowns

Account access is not the same as welfare gain; fees, debt, fraud, targeting, and exclusion require scrutiny.

Problems this could address

Extreme poverty
Hunger and unaffordable nutrition

Human development

Foundational learning tools and delivery

85editorial score

Help teachers and systems improve early literacy through instruction, assessment, and access tools.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market size70% of 10-year-olds in low- and middle-income countries were in learning povertyAs of/reference: 2022 update · World Bank Group

Evidence, score, and limitations

Editorial rationale

The learning gap is enormous and measurable, while tools succeed only when integrated into capable education systems.

Confidence: The World Bank establishes the learning gap; implementation evidence must be evaluated for each pedagogy and context.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness4 / 5
Adoption momentum4 / 5
Capital accessibility4 / 5

Evidence sources

What is Learning Poverty?World Bank Group · publication/reference: 2021-04-28; metric from 2022 update · source reviewed: 2026-09-20

Limitations and unknowns

Technology access, language, teacher workload, curriculum fit, and sustained learning gains vary substantially.

Problems this could address

Learning poverty
Extreme poverty

Basic needs

Safe water treatment and distribution

85editorial score

Extend reliable, affordable treatment, delivery, monitoring, and reuse systems.

Confidence: High
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market size2.2 billion people lacked safely managed drinking-water services in 2022As of/reference: 2022 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The service gap is clearly defined and core approaches are known, but long-term operations and local water conditions matter.

Confidence: WHO supplies a direct, defined need metric; the score compares the domain rather than a particular business model.

Score dimensions

Addressable need5 / 5
Intervention evidence5 / 5
Delivery readiness4 / 5
Adoption momentum4 / 5
Capital accessibility3 / 5

Evidence sources

Drinking-waterWorld Health Organization · publication/reference: 2023-09-13 · source reviewed: 2026-09-20

Limitations and unknowns

Capital cost, tariffs, source quality, maintenance capacity, and governance determine durable access.

Problems this could address

Unsafe drinking water
Inadequate sanitation
Climate-related health risk

Environment

Climate-resilient health, food, water, and housing systems

80editorial score

Adapt essential systems to withstand heat, flood, drought, disease, and other climate hazards.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market size3.6 billion people live in areas highly susceptible to climate changeAs of/reference: WHO fact sheet reviewed 2026 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The opportunity cuts across multiple essential systems, but it is broad and benefits depend on local hazard and vulnerability data.

Confidence: WHO establishes broad exposure; resilience priorities and avoided losses must be assessed locally.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness3 / 5
Adoption momentum4 / 5
Capital accessibility3 / 5

Evidence sources

Climate change and healthWorld Health Organization · publication/reference: 2023-10-12 · source reviewed: 2026-09-20

Limitations and unknowns

Hazard projections, adaptation quality, maintenance, maladaptation, and distributional effects remain uncertain.

Problems this could address

Climate-related health risk
Unsafe drinking water
Hunger and unaffordable nutrition
Adequate housing shortage

Basic needs

Resilient and affordable food systems

80editorial score

Improve productive resilience, distribution, affordability, and reduction of food loss.

Confidence: Medium
Freshness: Review due
Reviewed: 2026-09-20

Need signal—not market sizeMore than 2.8 billion people could not afford a healthy diet in 2022As of/reference: 2022 · Food and Agriculture Organization of the United Nations

Evidence, score, and limitations

Editorial rationale

The need spans billions, while causes and viable interventions differ across production, trade, income, and crisis contexts.

Confidence: FAO directly states the affordability gap; this solution domain combines distinct interventions with different evidence.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness3 / 5
Adoption momentum4 / 5
Capital accessibility4 / 5

Evidence sources

Hunger numbers stubbornly high for three consecutive years as global crises deepen: UN reportFood and Agriculture Organization of the United Nations · publication/reference: 2024-07-24 · source reviewed: 2026-09-20

Limitations and unknowns

More supply does not automatically improve affordability, nutrition, farmer income, or climate resilience.

Problems this could address

Hunger and unaffordable nutrition
Climate-related health risk

Health

Healthy built environments

75editorial score

Reduce chronic-disease and pollution exposure through healthier transport, buildings, and public environments.

Confidence: Medium
Freshness: Current
Reviewed: 2026-09-20

Need signal—not market size75% of non-pandemic-related deaths were from NCDs in 2021As of/reference: 2021 · World Health Organization

Evidence, score, and limitations

Editorial rationale

The domain can address multiple risk pathways, but benefits and implementation authority are distributed across sectors.

Confidence: WHO establishes the health need; the cross-sector solution framing is editorial and context-dependent.

Score dimensions

Addressable need5 / 5
Intervention evidence4 / 5
Delivery readiness3 / 5
Adoption momentum3 / 5
Capital accessibility3 / 5

Evidence sources

Noncommunicable diseasesWorld Health Organization · publication/reference: 2025-09-25 · source reviewed: 2026-09-20

Limitations and unknowns

Causal contribution, governance, financing, and equity outcomes depend on the local intervention and environment.

Problems this could address

Noncommunicable disease burden
Air pollution

Economic & social systems

Productive infrastructure and job access

70editorial score

Connect people to reliable infrastructure, skills pathways, and productive work.

Confidence: Medium
Freshness: Current
Reviewed: 2026-09-20

Need signal—not market sizeAround 831 million people live in extreme povertyAs of/reference: World Bank current methodology reviewed 2026 · World Bank Group

Evidence, score, and limitations

Editorial rationale

The domain targets structural routes out of poverty, but outcomes are slow, place-dependent, and difficult to attribute.

Confidence: The poverty need is directly sourced; the broad causal path from infrastructure or skills to durable income is context-specific.

Score dimensions

Addressable need5 / 5
Intervention evidence3 / 5
Delivery readiness3 / 5
Adoption momentum3 / 5
Capital accessibility3 / 5

Evidence sources

Poverty overviewWorld Bank Group · publication/reference: Fall 2025 update; 2021 PPP methodology · source reviewed: 2026-09-20

Limitations and unknowns

Job quality, displacement, geographic matching, local demand, and distribution of gains require separate evaluation.

Problems this could address

Extreme poverty
Learning poverty

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Trace the claims

Source bibliography

Direct public sources used for the launch snapshot. Source years remain visible; they are not rewritten as current-year statistics.

Noncommunicable diseasesWorld Health Organization · reference: 2025-09-25 · reviewed: 2026-09-20
Air pollutionWorld Health Organization · reference: Estimate year not stated; page reviewed 2026-09-20 · reviewed: 2026-09-20
Drinking-waterWorld Health Organization · reference: 2023-09-13 · reviewed: 2026-09-20
SanitationWorld Health Organization · reference: 2024-03-22 · reviewed: 2026-09-20
Hunger numbers stubbornly high for three consecutive years as global crises deepen: UN reportFood and Agriculture Organization of the United Nations · reference: 2024-07-24 · reviewed: 2026-09-20
Poverty overviewWorld Bank Group · reference: Fall 2025 update; 2021 PPP methodology · reviewed: 2026-09-20
What is Learning Poverty?World Bank Group · reference: 2021-04-28; metric from 2022 update · reviewed: 2026-09-20
Climate change and healthWorld Health Organization · reference: 2023-10-12 · reviewed: 2026-09-20
HousingUnited Nations Human Settlements Programme · reference: 2030 need estimate; publication date not stated · reviewed: 2026-09-20
Ageing and healthWorld Health Organization · reference: 2025-10-01 · reviewed: 2026-09-20

Maintained as an editorial snapshot by Michael Facchinello. Changes require refreshing the reviewed date, source context, and score rationale.