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
open
Global / Unspecified, Global
Communities lack timely information on risks. Low-cost monitoring and alerts can save lives.
climate-environment
global-unspecified
climate
data
early-warning
systems
sparse
regions
communities
lack
timely
information
society-governance
technology-computing
african
monitoring
under
open
Global / Unspecified, Global
Coal and fossil-fuel workers risk job loss. Transition support and reskilling programs are essential.
climate-environment
global-unspecified
workers
just
transitions
high-emission
sectors
under-planned
coal
fossil-fuel
risk
job
economics-resources
informal
technology-computing
health-biology
african
automation
open
Global / Unspecified, Global
Cities expand into floodplains and coasts. Climate-informed spatial planning can reduce exposure.
climate-environment
global-unspecified
urban-planning
planning
urban
rarely
integrates
long-term
climate
risks
cities
expand
floodplains
society-governance
african
change
governance
systems
open
Global / Unspecified, Global
Investors cannot fully assess vulnerabilities. Climate-risk disclosure frameworks can help.
climate-environment
global-unspecified
data
private-sector
climate
risk
exposure
limited
investors
cannot
fully
assess
society-governance
systems
technology-computing
african
whether
open
Global / Unspecified, Global
Weak enforcement and subsidies sustain unsustainable catches. Rights-based fisheries and monitoring tech can reduce pressure.
society-governance
global-unspecified
overfishing
continues
deplete
marine
stocks
weak
enforcement
subsidies
sustain
unsustainable
african
illegal
economics-resources
collapsed
near
open
Global / Unspecified, Global
Mining plans advance without full understanding. Baseline research is essential.
society-governance
global-unspecified
data
deep-sea
ecosystems
limited
mining
plans
advance
full
understanding
baseline
technology-computing
whether
philosophy-ethics
systems
african
mathematics-logic
open
Global / Unspecified, Global
Paper parks exist without real protection. Community-based enforcement and funding can help.
social-civic-problems
global-unspecified
enforcement
marine
protected
areas
often
lack
effective
paper
parks
exist
society-governance
philosophy-ethics
african
whether
technology-computing
climate-environment
open
Global / Unspecified, Global
Local livelihoods are squeezed. Preferential access and co-management can support them.
economics-resources
global-unspecified
small-scale
fishers
face
competition
industrial
fleets
local
livelihoods
squeezed
preferential
society-governance
african
fast
growing
remains
climate-environment
open
Global / Unspecified, Global
Weak monitoring allows IUU operators to thrive. Satellite and AI tools can improve detection.
science-space
global-unspecified
illegal
unreported
unregulated
fishing
remains
pervasive
weak
monitoring
allows
iuu
whether
philosophy-ethics
african
waters
climate-environment
open
Global / Unspecified, Global
Dependence on fishing increases vulnerability. Blue-economy diversification can help.
economics-resources
global-unspecified
coastal
communities
lack
alternative
livelihoods
fisheries
decline
dependence
fishing
increases
african
climate-environment
society-governance
climate
open
Global / Unspecified, Global
Soil erosion and nutrient loss reduce productivity. Restoration programs and regenerative agriculture can help.
economics-resources
global-unspecified
land
degradation
affects
quarter
soil
erosion
nutrient
loss
reduce
society-governance
communities
climate-environment
african
remain
philosophy-ethics
haven
open
Global / Unspecified, Global
Sprawl cuts off wildlife movement. Green infrastructure and planning can mitigate fragmentation.
climate-environment
global-unspecified
urban
expansion
fragments
natural
habitats
sprawl
cuts
off
wildlife
movement
african
cities
systems
informal
haven
planning
open
Global / Unspecified, Global
Many regions lack monitoring. Citizen science and remote sensing can improve data.
society-governance
global-unspecified
data
species
populations
incomplete
regions
lack
monitoring
citizen
science
remote
technology-computing
systems
african
whether
limited
sparse
open
Global / Unspecified, Global
Trees on farms can improve resilience and biodiversity. Extension services can promote adoption.
climate-environment
global-unspecified
biodiversity
agroforestry
opportunities
underused
trees
farms
improve
resilience
extension
services
african
remains
access
technology-computing
africa
capacity
open
Global / Unspecified, Global
Courts are costly and slow. Legal aid and simplified procedures can improve access.
society-governance
global-unspecified
access
justice
limited
low-income
marginalized
groups
courts
costly
slow
legal
remains
african
low
lack
income
affordable
open
Global / Unspecified, Global
Restrictions on NGOs limit advocacy. Legal protections for civil society are needed.
science-space
global-unspecified
civil
society
space
shrinking
several
countries
restrictions
ngos
limit
advocacy
public
african
society-governance
procurement
increasing
transparency
open
Global / Unspecified, Global
Lack of transparency hinders reforms. Open justice data can guide improvements.
society-governance
global-unspecified
data
justice
crime
outcomes
incomplete
lack
transparency
hinders
reforms
open
technology-computing
systems
african
limited
sparse
whether
open
Global / Unspecified, Global
Privacy and rights are at risk. Oversight and legal limits are essential.
technology-computing
global-unspecified
digital
surveillance
powers
lack
strong
safeguards
privacy
rights
risk
oversight
society-governance
without
whether
systems
mass
african
open
Global / Unspecified, Global
Pretrial detention is overused. Alternatives and reforms can reduce overcrowding.
social-civic-problems
global-unspecified
overcrowding
prison
poor
conditions
violate
rights
pretrial
detention
overused
alternatives
systems
african
africa
suffer
technology-computing
many
open
Global / Unspecified, Global
SDGs require more funding than current flows. Blended finance and innovative instruments can help.
sdg-sustainable-development-goals
global-unspecified
finance
development
volumes
remain
below
estimated
needs
sdgs
require
funding
climate-environment
mechanisms
ensuring
climate
african
society-governance
