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
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
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 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
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 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
Create desalination systems that minimize energy, brine damage, maintenance burden, and water cost for communities beyond conventional utility networks.
society-governance
africa
cape-verde
desalination
communities
low-energy
isolated
coastal
create
systems
minimize
energy
brine
economics-resources
climate-environment
fishing
social-civic-problems
remote
Develop mapping, treatment, and enforcement strategies where homes, workshops, tanneries, and small factories discharge into the same unmanaged drainage networks.
climate-environment
asia
india
drainage
separating
industrial
wastewater
domestic
informal
settlements
develop
mapping
treatment
economics-resources
society-governance
urban
social-civic-problems
health-biology
open
Sierra Leone, Africa
Design repair financing, local spare-parts networks, remote diagnostics, and accountability models that keep water points functional after initial projects end.
health-biology
africa
sierra-leone
water
maintaining
rural
pumps
donor-funded
installation
design
repair
financing
local
climate-environment
mathematics-logic
public
economics-resources
before
Create low-cost monitoring, recharge, storage, and governance systems for coastal aquifers threatened by sea-level rise and excessive groundwater extraction.
society-governance
asia
bangladesh
preventing
saltwater
intrusion
delta
drinking-water
supplies
create
low-cost
monitoring
recharge
systems
governance
climate-environment
economics-resources
coastal
Map and mitigate heavy metals, flame retardants, acids, and other pollutants leaching from informal electronics-processing sites into drinking-water aquifers.
climate-environment
africa
ghana
informal
detecting
groundwater
contamination
e-waste
recycling
map
mitigate
heavy
metals
settlements
economics-resources
waste
society-governance
global-unspecified
Develop credible worker-centered systems that identify recruitment abuse, debt bondage, and wage theft in supply chains that currently rely on superficial audits.
economics-resources
asia
thailand
supply-chain
chains
detecting
forced
labor
risks
agricultural
commodity
develop
credible
worker-centered
systems
society-governance
across
supply
open
Mexico, North America
Create legal, technical, and cooperative mechanisms that protect farmers' ability to save, exchange, and improve seeds while maintaining quality and disease safety.
health-biology
north-america
mexico
securing
seed
sovereignty
communities
facing
corporate
consolidation
create
legal
technical
economics-resources
society-governance
global-unspecified
systems
community
open
Brazil, South America
Identify affordable feed, breeding, veterinary, and manure-management interventions that lower methane without reducing farmer income or animal health.
climate-environment
south-america
brazil
reducing
methane
emissions
smallholder
ruminants
identify
affordable
feed
breeding
veterinary
society-governance
economics-resources
social-civic-problems
interventions
methods
Develop scalable methods to harvest, process, and use invasive water plants without spreading them further or introducing toxins into feed, compost, or consumer goods.
economics-resources
africa
uganda
invasive
turning
aquatic
weeds
safe
local
products
develop
scalable
methods
species
global-unspecified
public
philosophy-ethics
determine
