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 screen time replacing play. 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.
screen
time
replacing
play
developing
social-civic-problems
Energy, computing, medicine, and infrastructure may depend on minerals with concentrated or fragile supply chains. Research must identify substitutes without trading scarcity for toxicity, low performance, or new ecological damage. 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
europe
germany
supply-chain
replacing
critical
materials
abundant
alternatives
low-income
communities
research
must
identify
technology-computing
climate-environment
society-governance
systems
open
United Kingdom, Europe
Europe must support Ukraine while rebuilding its own defence posture and replacing Russian energy imports, all under fiscal and political constraints. Defence-industrial coordination platforms and grid-optimization tools are key areas for innovation.
mathematics-logic
europe
united-kingdom
ukraine
energy
war
continues
reshape
european
security
systems
variant
focuses
society-governance
climate-environment
data
technology-computing
infrastructure
Surging demand for traditional air conditioning units in warm Asian nations releases potent HFC greenhouse gases, compounding global warming.
climate-environment
asia
india
air
haven
developed
low-energy
cooling
technologies
capable
replacing
fluorinated
refrigerant
global-unspecified
whether
philosophy-ethics
health-biology
enabling
Create reliable hybrid energy systems for isolated sites with high, variable loads where diesel remains entrenched because outages are extremely costly.
climate-environment
oceania
australia
diesel
replacing
remote
mining
industrial
microgrids
create
reliable
hybrid
energy
systems
society-governance
economics-resources
global-unspecified
whether
Develop economically viable integrated pest-management alternatives for small growers who rely on highly toxic chemicals because safer options are inaccessible or ineffective.
economics-resources
africa
kenya
replacing
hazardous
pesticide
informal
vegetable
production
develop
economically
viable
integrated
settlements
local
climate-environment
circular
society-governance
