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
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
Develop safer battery chemistries, charging systems, standards, and emergency-response methods as electric mobility and backup batteries proliferate in crowded neighborhoods.
social-civic-problems
asia
china
reducing
battery-fire
risk
dense
urban
housing
develop
safer
battery
chemistries
systems
climate-environment
methods
society-governance
technology-computing
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
Develop storage approaches that shift renewable energy across weeks or months rather than only across hours, without prohibitive material or infrastructure costs.
climate-environment
europe
finland
renewable-energy
energy
storage
affordable
seasonal
cold
climates
develop
approaches
shift
renewable
global-unspecified
society-governance
systems
whether
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
Build low-cost standards, inverters, storage coordination, and incentive systems that enable high rooftop-solar adoption without destabilizing distribution grids.
climate-environment
asia
india
systems
grid
integration
millions
unreliable
rooftop
solar
build
low-cost
standards
society-governance
technology-computing
economics-resources
global-unspecified
mathematics-logic
Develop economically viable technologies and markets for end-of-life turbine blades, which are difficult to separate, recycle, transport, and repurpose.
economics-resources
europe
denmark
blades
recycling
composite
wind-turbine
scale
develop
economically
viable
technologies
markets
safe
efficient
global-unspecified
advanced
haven
Create decentralized treatment, safer chemistry, water reuse, and compliance models for dense clusters of small dyeing units.
science-space
asia
india
dyeing
clusters
reducing
chemical
contamination
textile
create
decentralized
treatment
safer
water
climate-environment
small
informal
haven
Develop portable, durable water-treatment and storage systems aligned with mobile communities' routes, governance structures, and environmental constraints.
society-governance
africa
somalia
building
safe
water
access
nomadic
displaced
populations
develop
portable
durable
systems
solutions
climate-environment
governance
communities
Combine satellite observations, smart metering, community reporting, and fair enforcement to identify unauthorized pumping without penalizing subsistence users.
science-space
asia
iran
detecting
illegal
water
extraction
stressed
aquifers
combine
satellite
observations
smart
global-unspecified
logging
climate-environment
philosophy-ethics
remote
open
Argentina, South America
Develop affordable manure management, runoff monitoring, and nutrient-recovery systems for farms too large for household methods but too small for industrial treatment.
climate-environment
south-america
argentina
runoff
farms
stopping
nutrient
medium-scale
livestock
too
develop
affordable
manure
systems
society-governance
methods
global-unspecified
monitoring
Create transparent testing, household behavior, public infrastructure, and maintenance strategies so families consistently access safe water rather than reverting to contaminated sources.
economics-resources
asia
bangladesh
safe
reducing
arsenic
exposure
wells
unevenly
distributed
create
transparent
testing
public
climate-environment
society-governance
access
systems
open
Mexico, North America
Develop monitoring, crop-selection, treatment, and incentive systems that protect health while preserving a critical irrigation resource.
society-governance
north-america
mexico
safe
reuse
treated
wastewater
peri-urban
farming
develop
monitoring
crop-selection
treatment
systems
health-biology
climate-environment
health
global-unspecified
Create cooperative frameworks that enable countries sharing underground water reserves to measure extraction, prevent depletion, and resolve disputes.
society-governance
asia
jordan
governance
transboundary
aquifers
incomplete
data
create
cooperative
frameworks
enable
countries
global-unspecified
mathematics-logic
water
climate-environment
african
Establish practical measurement methods and interventions for microplastics moving from rivers and sediments into fish, crops, livestock, and human diets.
climate-environment
tracking
microplastic
movement
freshwater
food
systems
establish
practical
measurement
methods
society-governance
human
economics-resources
assessing
reducing
real
time
Design toilets, containment, emptying, transport, and treatment systems that function during floods without exposing residents or sanitation workers to waste.
climate-environment
africa
nigeria
sanitation
making
services
viable
flood-prone
informal
settlements
design
toilets
containment
systems
society-governance
economics-resources
public
technology-computing
Develop pressure management, household storage, pipe repair, and monitoring methods for systems where periodic shutoffs allow contaminated water to enter damaged pipes.
climate-environment
asia
nepal
water
preventing
fecal
contamination
during
intermittent
urban
supply
develop
pressure
systems
society-governance
global-unspecified
methods
african
Improve local forecasting, storage, allocation, and conflict-resolution systems as glacier melt changes the timing and reliability of river flows.
science-space
asia
kyrgyzstan
managing
glacier-fed
water
variability
downstream
communities
improve
local
forecasting
storage
systems
climate-environment
society-governance
turn
curb
Develop equitable restoration plans that improve water quality without simply displacing low-income residents or relocating pollution downstream.
climate-environment
asia
india
restoring
urban
rivers
constrained
informal
settlements
industry
develop
equitable
restoration
society-governance
economics-resources
global-unspecified
water
african
