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
persistence of tuberculosis as a major killer 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.
successful
persistence
tuberculosis
major
killer
health-biology
continued high burden of malaria 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.
continued
high
burden
malaria
designing
other
incomplete vaccination coverage for 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.
incomplete
vaccination
coverage
children
establishing
other
rising rates of obesity driven by poor diets 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.
rising
rates
obesity
driven
poor
other
children suffering from chronic undernutrition 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.
children
suffering
chronic
undernutrition
establishing
other
Future missions beyond low Earth orbit will expose crews to radiation, isolation, altered gravity, communication delays, and limited emergency care. The open problem is developing autonomous health systems that remain safe under unknown conditions. 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.
science-space
asia
india
missions
medical
psychological
support
long-duration
space
low-income
communities
limited
future
technology-computing
economics-resources
climate-environment
society-governance
systems
rising sea levels threatening coastal populations 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.
rising
sea
levels
threatening
coastal
other
growing risk of mass species extinction 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.
growing
risk
mass
species
extinction
other
Removing debris may require technologies capable of approaching, manipulating, or disabling other spacecraft. The challenge is creating verification and trust mechanisms so debris removal does not become covert anti-satellite capability. 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.
science-space
debris
removal
technologies
space
dual-use
low-income
communities
removing
may
require
technology-computing
economics-resources
climate-environment
society-governance
systems
quantum
infrastructure
increasing frequency and intensity of wildfires 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.
increasing
frequency
intensity
wildfires
designing
other
accelerating loss of the world's forests 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.
accelerating
loss
world
forests
strengthening
climate-environment
massive accumulation of plastic in the oceans 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.
massive
accumulation
plastic
oceans
implementing
climate-environment
When people rent out unused cognitive capacity during daydreaming, buyers may leave behind persistent mental traces. The problem is creating clean separation between leased neural resources and the host’s own cognition so that temporary economic use does not produce lasting psychological or identity effects.
preventing
residual
thought
contamination
rented
economics-resources
housing that remains unaffordable for ordinary families 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.
remains
housing
unaffordable
ordinary
families
social-civic-problems
Modern economies rely on precise timing for finance, telecom, energy, and navigation. Future systems need resilient alternatives to single-source satellite timing during cyberattacks, solar storms, and geopolitical crises. 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.
science-space
asia
india
timing
secure
space-based
terrestrial
disruptions
low-income
communities
modern
economies
rely
technology-computing
economics-resources
climate-environment
society-governance
systems
States and institutions may need registries of deployed AI models, their data sources, risk levels, and accountability owners. The challenge is building disclosure rules that support safety without exposing legitimate security or privacy risks. This becomes particularly difficult during fiscal austerity, because public institutions must remain fair, resilient, and accountable while adapting to new risks.
society-governance
asia
bangladesh
registries
during
fiscal
austerity
governance
public-interest
model
institutions
risks
states
public
climate-environment
systems
across
When local weather can be bought in advance, wealthier areas may secure preferred conditions while poorer ones experience residual or adverse patterns. The challenge is creating equitable allocation mechanisms for atmospheric resources that do not deepen existing social divides or disrupt larger climate systems.
climate
weather
preventing
micro
inequality
climate-environment
States and institutions may need registries of deployed AI models, their data sources, risk levels, and accountability owners. The challenge is building disclosure rules that support safety without exposing legitimate security or privacy risks. This becomes particularly difficult under climate migration pressure, because public institutions must remain fair, resilient, and accountable while adapting to new risks.
society-governance
asia
philippines
registries
under
climate
migration
pressure
governance
public-interest
model
institutions
risks
public
climate-environment
systems
Astronomy, cultural practices, wildlife, and human sleep may be affected by large satellite fleets. A workable solution must reconcile connectivity goals with brightness limits, orbital design, and international compliance. 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.
science-space
satellite
preserving
dark
skies
during
expansion
low-income
communities
solution
technology-computing
economics-resources
climate-environment
society-governance
systems
quantum
infrastructure
safe
Lunar infrastructure and resource extraction could create new strategic inequalities. The challenge is developing rules that enable science and commercial activity while protecting shared interests and preventing territorial competition. The design must remain functional when standards, trade routes, data access, and diplomatic cooperation are unreliable. 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
oceania
australia
access
lunar
equitable
scientific
resources
under
geopolitical
fragmentation
create
infrastructure
technology-computing
climate-environment
society-governance
systems
quantum