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
Encroachment on natural urban drainage lakes leaves rainwater with nowhere to sink, causing severe flash flooding that shuts down entire economic centers.
economics-resources
asia
india
flash
urban
flooding
natural
haven
solved
catastrophic
caused
total
loss
climate-environment
global-unspecified
cities
systems
african
Low-income urban districts across seismic fault lines consist of unreinforced concrete block buildings highly susceptible to collapse during major earthquakes.
local-regional
asia
nepal
buildings
earthquakes
haven
retrofitted
millions
vulnerable
non-engineered
masonry
against
high-magnitude
urban
climate-environment
architectural
innovations
high
Municipal transport authorities lack upfront capital to purchase electric buses and build high-voltage charging depots, prolonging diesel air pollution.
climate-environment
asia
sri-lanka
air-pollution
electric
haven
transition-funded
fossil
fuel
bus
fleets
zero-emission
transit
networks
global-unspecified
whether
philosophy-ethics
mathematics-logic
Narrow alleys prevent traditional fire trucks from entering slum communities, where electrical short circuits frequently ignite massive, uncontrolled fires.
economics-resources
asia
bangladesh
informal
fire
haven
secured
safety
infrastructure
densely
packed
urban
settlements
society-governance
systems
technology-computing
african
global-unspecified
The rapid adoption of electric rickshaws and scooters creates a massive wave of end-of-life batteries that are dumped in open landfills due to lack of local recycling facilities.
climate-environment
asia
india
recycling
batteries
electric
haven
built
scalable
infrastructure
spent
lithium-ion
two
global-unspecified
waste
systems
management
solved
Informal foundries produce cheap cooking pots from scrap aluminum contaminated with high levels of lead and arsenic, which leach into daily meals.
climate-environment
asia
afghanistan
haven
regulated
hazardous
heavy
metals
domestic
food
preparation
cookware
informal
eliminated
urban
economics-resources
groundwater
waste
High consumer demand for cheap apparel drives subcontracted garment dye houses to bypass effluent treatment to maintain razor-thin profit margins.
economics-resources
asia
cambodia
haven
eliminated
fast-fashion
textile
sludge
dumping
suburban
waterways
high
consumer
climate-environment
water
global-unspecified
solved
make
Anerobic decomposition in flooded rice paddies is a massive source of global methane, but farmers lack incentives and technical training to adopt Alternate Wetting and Drying (AWD) techniques.
climate-environment
asia
vietnam
methane
rice
haven
quantified
emissions
leaking
expanding
paddy
cultivations
under
global-unspecified
philosophy-ethics
society-governance
technologies
continuous
Standard crop insurance relies on slow physical damage assessments. Satellite-triggered parametric insurance models are not yet calibrated for micro-climate variations.
climate-environment
asia
india
insurance
parametric
haven
built
coverage
smallholder
farmers
against
unseasonal
localized
products
global-unspecified
crop
whether
african
Inconsistent meteorology data sharing between neighboring nations delays mass evacuation orders during rapidly intensifying Category 5 tropical cyclones.
local-regional
asia
philippines
haven
established
regional
transboundary
early-warning
networks
super-typhoons
moving
southeast
data
global-unspecified
technology-computing
african
society-governance
limited
Drained peat soils ignite during dry El Niño years, creating subterranean fires that burn for months, releasing enormous carbon emissions and toxic transboundary haze.
climate-environment
asia
indonesia
carbon-emissions
carbon
haven
secured
peatland
fire
suppression
networks
stop
annual
catastrophic
global-unspecified
whether
philosophy-ethics
mathematics-logic
Rising sea surface temperatures trigger massive coral bleaching, threatening marine biodiversity hot-spots that support the livelihoods of millions of coastal residents.
climate-environment
asia
indonesia
biodiversity
coral
bleaching
marine
haven
arrested
events
caused
localized
heatwaves
triangle
near
protecting
coastal
global-unspecified
High concentrations of plastic runoff degrade into microplastics that enter pelagic fish species, posing bioaccumulation risks for human consumers.
climate-environment
asia
china
haven
stopped
marine
microplastic
ingestion
commercial
fisheries
major
estuarine
zones
global-unspecified
prevent
philosophy-ethics
whether
mathematics-logic
Bright coastal lights and sea-wall construction disrupt endangered sea turtle egg-laying beaches, causing steep declines in hatchling survival rates.
climate-environment
asia
sri-lanka
sea
turtle
coastal
haven
mitigated
nesting
ground
destruction
caused
tourism
global-unspecified
philosophy-ethics
whether
way
mathematics-logic
Highways and railway lines cutting through elephant migration corridors trigger frequent violent encounters, destroying crops and causing loss of human and elephant lives.
social-civic-problems
asia
india
corridors
haven
mitigated
human-elephant
conflicts
caused
linear
infrastructure
fracturing
wildlife
philosophy-ethics
global-unspecified
whether
have
loss
Fast-spreading invasive flora species overrun degraded forest floors, preventing natural regeneration of indigenous tree canopy species.
climate-environment
asia
malaysia
biodiversity
species
invasive
forest
haven
contained
plant
choking
native
primary
global-unspecified
philosophy-ethics
mathematics-logic
prevent
have
Lax enforcement and local corruption allow illicit logging cartels to extract high-value hardwood trees from remote protected areas.
society-governance
asia
myanmar
parks
protected
haven
eliminated
illegal
timber
poaching
national
under
paper
global-unspecified
logging
whether
science-space
remote
Centralized national identity databases lack modern cybersecurity protocols, exposing millions of citizens' biometric data to commercial misuse and state surveillance.
technology-computing
asia
india
cybersecurity
data
identity
haven
secured
civil
registration
systems
unauthorized
access
theft
society-governance
global-unspecified
whether
without
Millions of pre-trial detainees languish in overcrowded prisons for years due to acute judicial vacancy rates and outdated paper-based case management.
society-governance
asia
pakistan
judicial
case
haven
sped
extreme
backlogs
lower-court
legal
systems
millions
technology-computing
global-unspecified
whether
grievance
philosophy-ethics
Developing Asian countries spend more on servicing foreign debt than on climate adaptation. International financial institutions have not scaled debt swaps effectively.
climate-environment
asia
sri-lanka
debt
asian
haven
created
debt-for-climate
swap
mechanisms
significantly
relieve
sovereign
global-unspecified
whether
philosophy-ethics
resolved
determine