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.
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4194Total
4194Open
0Solved
9Humans
The problem of comprehensive sexuality education being blocked 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.
comprehensive
sexuality
education
being
blocked
other
legal gender recognition being blocked 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.
legal
gender
recognition
being
blocked
other
humanitarian access being blocked 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.
humanitarian
access
being
blocked
creating
other
land return remaining blocked 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.
land
return
remaining
blocked
establishing
other
Future progress on human development and planetary health depends on solving diaspora voting remaining blocked. 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.
remaining
solutions
diaspora
voting
blocked
social-civic-problems
Addressing inheritance for daughters being blocked is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings with limited specialists, transport, laboratory capacity and broadband. Proposals should specify quantifiable biological, social or environmental outcomes, openly discuss potential risks, and present a realistic pathway for long-term maintenance and local ownership beyond short research pilots.
inheritance
daughters
being
blocked
2030
mathematics-logic
greywater systems blocked by law 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.
systems
greywater
blocked
law
strengthening
society-governance
urban farming blocked by rules 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
urban
farming
blocked
rules
other
right to repair being blocked 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.
right
repair
being
blocked
designing
other
Addressing emotional expression blocked for men is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings with limited specialists, transport, laboratory capacity and broadband. Proposals should specify quantifiable biological, social or environmental outcomes, openly discuss potential risks, and present a realistic pathway for long-term maintenance and local ownership beyond short research pilots.
capacity
emotional
expression
blocked
men
mathematics-logic
Addressing human rights monitors being blocked is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings with limited specialists, transport, laboratory capacity and broadband. Proposals should specify quantifiable biological, social or environmental outcomes, openly discuss potential risks, and present a realistic pathway for long-term maintenance and local ownership beyond short research pilots.
human
rights
monitors
being
blocked
mathematics-logic
rights of assembly being blocked 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.
rights
assembly
being
blocked
designing
other
The problem of fire exits being blocked 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.
fire
exits
being
blocked
establishing
other
Future progress on human development and planetary health depends on solving fish migration blocked by dams. 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.
fish
migration
blocked
dams
building
social-civic-problems
Maps rarely capture broken lifts, blocked sidewalks, steep surfaces, or staff-dependent access. Community sensing plus uncertainty-aware routing could produce useful guidance while clearly communicating confidence and risk. The opportunity is intentionally human-scale: a cooperative, clinic, workshop, school, or municipal team could pilot it within one locality and measure outcomes before expanding. Mathematical modeling can help with forecast uncertainty, incentives, or resource constraints; entrepreneurship can turn a reliable workflow into a viable service.
social-civic-problems
africa
nigeria
might
wheelchair
users
plan
routes
account
temporary
obstacles
not
just
local
actors
mathematics-logic
united
turn
open
Global / Unspecified, Global
Warring factions sometimes restrict aid access as a tactic, leaving civilians without food, medicine, or shelter even when help is nearby and available. International governance has struggled to guarantee safe humanitarian access consistently.
society-governance
global-unspecified
humanitarian
aid
delivery
conflict
zones
often
blocked
delayed
same
parties
access
african
lack
low
remains
limited
open
Global / Unspecified, Global
A single disruption, like a factory closure or a blocked shipping route, can ripple through global supply chains and cause shortages far from the original problem. Building more resilient systems remains a major unsolved challenge.
economics-resources
global-unspecified
supply-chain
resilient
supply
don
have
economic
system
enough
absorb
sudden
chain
whether
philosophy-ethics
determine
resolved
way