Repository of problems worth solving
World Solve is a public institutional repository for identifying real unresolved problems across science, society, health, governance, economics, and local systems. Each entry is intended to be citable, inspectable, and actionable.
Publicly citable
Every problem has a stable citation code for reference and discussion.
Filtered by relevance
Search by category, geography, status, and keywords.
Builder-oriented
Use the repository to find startup ideas, policy leads, and research agendas.
4194Total
4194Open
0Solved
9Humans
Future progress on human development and planetary health depends on solving local markets being disrupted by aid. Conventional approaches have proven insufficient. The required intervention must integrate community knowledge, data and appropriate technology while remaining affordable, privacy-preserving and operable with minimal external support. Strong solutions will articulate measurable impact metrics, risk mitigation strategies, and a plan for sustained operation by local actors after the pilot phase.
local
markets
being
disrupted
aid
economics-resources
marketing of junk food to children remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demonstrate clear, measurable results. It should identify possible harms, respect local agency, and show how the solution can be maintained and expanded by the communities it is meant to serve.
marketing
junk
food
children
creating
economics-resources
Materials marketed as biodegradable may require industrial conditions unavailable in real waste systems or may fragment into harmful residues. Standards must distinguish genuine environmental benefit from misleading claims. The solution must work with limited capital, intermittent services, and local maintenance capacity. The research opportunity is to define measurable success criteria, test the approach in realistic settings, identify failure modes, and create a pathway from prototype to accountable deployment.
climate-environment
europe
germany
biodegradable
materials
durable
greenwashing
low-income
communities
may
must
marketed
require
technology-computing
economics-resources
society-governance
systems
quantum
second-hand markets needing support remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demonstrate clear, measurable results. It should identify possible harms, respect local agency, and show how the solution can be maintained and expanded by the communities it is meant to serve.
second
hand
markets
needing
support
economics-resources
alcohol marketing remaining strong remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demonstrate clear, measurable results. It should identify possible harms, respect local agency, and show how the solution can be maintained and expanded by the communities it is meant to serve.
alcohol
marketing
remaining
strong
designing
economics-resources
The problem of counterfeit goods flooding markets continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly adapted to local contexts. A strong solution must operate effectively under severe constraints of skilled personnel, infrastructure, electricity and connectivity. It should define clear measurable outcomes, identify possible unintended harms, and demonstrate how the intervention can be sustained by local institutions long after initial funding ends.
counterfeit
goods
flooding
markets
strengthening
other
The problem of black markets growing continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly adapted to local contexts. A strong solution must operate effectively under severe constraints of skilled personnel, infrastructure, electricity and connectivity. It should define clear measurable outcomes, identify possible unintended harms, and demonstrate how the intervention can be sustained by local institutions long after initial funding ends.
black
markets
growing
developing
scalable
other
open
United States, North America
Automation may remove tasks gradually rather than eliminate whole occupations, leaving workers with unstable hours and declining bargaining power. The challenge is designing transition institutions before labor-market weakness becomes entrenched. The solution must work with limited capital, intermittent services, and local maintenance capacity. The research opportunity is to define measurable success criteria, test the approach in realistic settings, identify failure modes, and create a pathway from prototype to accountable deployment.
economics-resources
north-america
united-states
automation
preventing
permanent
underemployment
task
low-income
communities
may
remove
tasks
technology-computing
climate-environment
society-governance
systems
quantum
Alternative proteins may improve land efficiency but face allergen, contamination, cultural, and market barriers. Solutions must include rigorous standards and locally appropriate product development. The solution must work with limited capital, intermittent services, and local maintenance capacity. The research opportunity is to define measurable success criteria, test the approach in realistic settings, identify failure modes, and create a pathway from prototype to accountable deployment.
economics-resources
proteins
safe
insects
microbial
mainstream
diets
low-income
communities
must
alternative
technology-computing
climate-environment
society-governance
systems
quantum
infrastructure
science-space
markets located too far from farms remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demonstrate clear, measurable results. It should identify possible harms, respect local agency, and show how the solution can be maintained and expanded by the communities it is meant to serve.
markets
located
too
far
farms
economics-resources
The problem of food spoiling before it reaches market continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly adapted to local contexts. A strong solution must operate effectively under severe constraints of skilled personnel, infrastructure, electricity and connectivity. It should define clear measurable outcomes, identify possible unintended harms, and demonstrate how the intervention can be sustained by local institutions long after initial funding ends.
food
spoiling
before
reaches
market
other
The problem of aggressive marketing of infant formula continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly adapted to local contexts. A strong solution must operate effectively under severe constraints of skilled personnel, infrastructure, electricity and connectivity. It should define clear measurable outcomes, identify possible unintended harms, and demonstrate how the intervention can be sustained by local institutions long after initial funding ends.
aggressive
marketing
infant
formula
establishing
other
The problem of supermarket disposal of edible food continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly adapted to local contexts. A strong solution must operate effectively under severe constraints of skilled personnel, infrastructure, electricity and connectivity. It should define clear measurable outcomes, identify possible unintended harms, and demonstrate how the intervention can be sustained by local institutions long after initial funding ends.
supermarket
disposal
edible
food
scaling
other
Selling the right to control how one is first perceived by others commodifies initial social encounters. The problem is protecting authentic self-presentation from advance commercial capture.
first
preventing
markets
future
impression
economics-resources
Surfaces that subtly incline walkers toward certain shops convert public right-of-way into directed marketing infrastructure. The problem is keeping pedestrian geometry neutral and safe rather than commercially steered.
toward
preventing
sidewalks
tilting
pedestrians
mathematics-logic
Temporary or permanent height exchange for social or economic benefits creates new bodily hierarchies and health risks. The problem is protecting bodily integrity from becoming a tradable commodity linked to status.
height
preventing
advantage
markets
trade
economics-resources
If people can sell the rights to their anticipated future regrets, they may later be forced to experience or suppress emotions for the buyer’s benefit. The challenge is protecting emotional autonomy from advance commodification that locks individuals into predetermined affective paths.
future
regrets
preventing
market
personal
economics-resources
If pets can be induced to shift attachment based on economic offers, the human-animal bond becomes a marketable asset. The problem is protecting enduring relationships from commercial override while still allowing rehoming under genuine welfare conditions.
preventing
loyalty
transfer
companion
animals
economics-resources
Urban platforms that reposition based on market indicators create unpredictable geography, disrupt supply chains, and separate communities. The problem is coordinating mobility, infrastructure continuity, and resident rights when the ground itself moves for financial reasons.
platforms
stabilizing
floating
cities
whose
economics-resources
If sleep becomes a tradable commodity sold in discrete blocks, the poorest citizens may be forced into permanent light or irregular cycles. The challenge is designing access systems that treat restorative sleep as a basic need rather than a market good, while still allowing voluntary exchange for those who choose it.
sleep
blocks
addressing
inequality
when
economics-resources