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
Develop methods to quantify livelihoods, health, culture, land, and social losses caused by drought, salinization, erosion, and chronic heat.
climate-environment
measuring
loss
damage
household
level
slow-onset
disasters
develop
methods
quantify
climate
economics-resources
global-unspecified
health-biology
health
whether
relocation
Develop land-use, compensation, farming, and hydrological strategies that allow rivers to absorb floods without simply eliminating rural livelihoods.
mathematics-logic
europe
netherlands
restoring
floodplains
while
maintaining
food
production
develop
land-use
compensation
farming
climate-environment
economics-resources
global-unspecified
urban
rural
open
Chile, South America
Design water-allocation and enforcement systems that reduce consumption among high users without shifting disproportionate burdens onto low-income residents.
climate-environment
south-america
chile
making
drought
restrictions
equitable
unequal
cities
design
water-allocation
enforcement
systems
society-governance
economics-resources
global-unspecified
public
social-civic-problems
open
United States, North America
Build risk-based grid maintenance, vegetation management, shutoff policies, and backup systems that prevent sparks without leaving communities vulnerable.
local-regional
north-america
united-states
reducing
wildfire
ignition
failing
electricity
infrastructure
build
risk-based
grid
maintenance
systems
economics-resources
technology-computing
communities
global-unspecified
Develop enforceable, economically viable protections for construction workers, delivery workers, street vendors, farm laborers, and factory workers exposed to dangerous heat.
economics-resources
asia
india
workers
heat
protecting
extreme
informal
employment
develop
enforceable
economically
viable
mathematics-logic
local
might
actors
global-unspecified
Develop durable, low-cost road, bridge, drainage, and maintenance approaches for areas facing increasingly erratic rainfall and flooding.
climate-environment
africa
mozambique
climate-proofing
rural
roads
connect
farmers
markets
develop
durable
low-cost
road
urban
african
economics-resources
infrastructure
access
open
Colombia, South America
Create affordable slope monitoring, drainage, building standards, relocation alternatives, and community warning systems for rapidly growing hillside settlements.
social-civic-problems
south-america
colombia
hillside
reducing
landslide
risks
informal
development
create
affordable
slope
monitoring
systems
society-governance
settlements
climate-environment
economics-resources
open
South Africa, Africa
Develop species selection, watering, soil protection, maintenance financing, and monitoring systems that allow urban tree canopies to survive rapid development.
climate-environment
africa
south-africa
urban
protecting
trees
during
heat
drought
construction
develop
species
selection
systems
society-governance
global-unspecified
cities
economics-resources
Build financial protection for recurrent floods, crop losses, storms, and heat events that are individually too small for aid but cumulatively devastating.
climate-environment
asia
philippines
small
insuring
vulnerable
households
against
repeated
disasters
build
financial
protection
economics-resources
climate
businesses
global-unspecified
community
Create restoration programs that improve coastal protection and carbon storage without excluding local fishers from traditional access and livelihoods.
climate-environment
asia
indonesia
restoring
mangroves
while
protecting
customary
fishing
rights
create
restoration
programs
economics-resources
coastal
communities
local
ecosystems
Develop localized alerting systems that account for terrain, landslides, poor connectivity, and short warning windows in remote mountainous settlements.
climate-environment
asia
nepal
warning
improving
early
flash
floods
mountain
communities
develop
localized
alerting
economics-resources
remote
systems
island
society-governance
Design legal and social systems for relocating communities exposed to erosion, flooding, drought, or sea-level rise while preserving rights, livelihoods, and identity.
climate-environment
oceania
fiji
managing
climate-driven
relocation
land
dispossession
design
legal
social
systems
relocating
society-governance
economics-resources
communities
climate
coastal
Create predictive maintenance and equipment-upgrade strategies for overloaded local grids serving growing cities and newly electrified rural areas.
economics-resources
asia
indonesia
grids
reducing
transformer
failures
rapidly
expanding
distribution
create
predictive
maintenance
rural
local
cities
before
might
Develop cooking technologies, fuel distribution, financing, repair, and behavioral models that reduce biomass dependence without imposing recurring burdens on women.
economics-resources
africa
rwanda
cooking
creating
clean
systems
households
actually
sustain
develop
technologies
fuel
society-governance
climate-environment
reducing
reduce
dependence
Create transition plans for towns dependent on coal jobs, tax revenue, rail infrastructure, and related industries as plants and mines close.
economics-resources
europe
poland
coal
managing
decommissioned
assets
local
economic
collapse
create
transition
plans
global-unspecified
solutions
social
public
fast
Develop modular panels, controllers, batteries, training, spare-parts supply, and warranties so off-grid solar systems remain functional beyond initial installation.
climate-environment
africa
madagascar
solar
building
repairable
infrastructure
remote
regions
develop
modular
panels
controllers
systems
society-governance
economics-resources
public
global-unspecified
Create practical electrification, heat-pump, biomass, solar-thermal, and process-efficiency solutions for firms unable to finance large decarbonization projects.
climate-environment
asia
turkey
low-carbon
heat
small
medium
industrial
enterprises
create
practical
electrification
heat-pump
society-governance
solutions
fast
growing
economics-resources
open
Democratic Republic of the Congo, Africa
Create technologies and governance systems that reduce water use, waste, labor abuse, biodiversity loss, and geopolitical concentration in lithium, cobalt, nickel, and rare-earth supply.
climate-environment
africa
democratic-republic-of-the-congo
biodiversity
sustainable
extraction
critical
minerals
energy
transition
create
technologies
governance
systems
society-governance
global-unspecified
water
economics-resources
open
Brazil, South America
Design safe, legal, affordable electricity systems where overloaded wiring, theft, insecure tenure, and weak utility trust create chronic fire and outage risks.
local-regional
south-america
brazil
electricity
reliable
high-density
informal
settlements
design
safe
legal
affordable
systems
society-governance
economics-resources
public
climate-environment
technology-computing
Create low-cost continuous monitoring and repair systems for dispersed wells, pipelines, compressors, and storage sites that evade satellite and regulatory oversight.
science-space
asia
kazakhstan
detecting
methane
leaks
small
oil
gas
facilities
create
low-cost
continuous
systems
society-governance
monitoring
economics-resources
technologies
