What World Solve is
World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.
For builders
Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.
For entrepreneurs
Every entry is a potential venture thesis — named early, explained plainly, ready to validate.
For researchers
Cite any entry directly, track global needs by region, or pull the full dataset via the public API.
2165 total logged
2165 still open
0 marked solved
8 registered profiles
Access to sexual and reproductive health services is unequal.
open
Global / Unspecified, Global
Restrictions and stigma limit women’s ability to control their health. Rights-based, accessible services can improve autonomy.
health-biology
global-unspecified
health
services
access
sexual
reproductive
unequal
restrictions
stigma
limit
women
remains
african
like
limited
africa
Citation ID: WS01690
Title: Access to sexual and reproductive health services is unequal.
URL: https://www.worldsolve.org/index.php?api=problem&id=1690
Data on gender disparities is often sparse or biased.
open
Global / Unspecified, Global
Many surveys miss intra-household differences or non-binary identities. Inclusive, disaggregated data collection can improve policy.
society-governance
global-unspecified
data
gender
disparities
often
sparse
biased
surveys
miss
intra-household
differences
incomplete
limited
african
systems
monitoring
technology-computing
Citation ID: WS01691
Title: Data on gender disparities is often sparse or biased.
URL: https://www.worldsolve.org/index.php?api=problem&id=1691
Representation of women in leadership remains low.
open
Global / Unspecified, Global
Boardrooms and parliaments remain male-dominated. Quotas and mentorship programs can accelerate change.
health-biology
global-unspecified
representation
women
leadership
remains
low
boardrooms
parliaments
remain
male-dominated
quotas
rates
land
ownership
yet
african
Citation ID: WS01692
Title: Representation of women in leadership remains low.
URL: https://www.worldsolve.org/index.php?api=problem&id=1692
Hundreds of millions still lack safely managed drinking water.
open
Global / Unspecified, Global
Rural and peri-urban areas rely on contaminated sources. Community-managed water systems and filtration tech can expand access.
social-civic-problems
global-unspecified
water
hundreds
millions
lack
safely
managed
drinking
rural
peri-urban
areas
african
access
urban
climate-environment
long
asia
Citation ID: WS01693
Title: Hundreds of millions still lack safely managed drinking water.
URL: https://www.worldsolve.org/index.php?api=problem&id=1693
Sanitation coverage gaps drive diarrheal disease and child mortality.
open
Global / Unspecified, Global
Open defecation and unsafe sanitation remain common. Low-cost toilets and sludge management systems can reduce disease.
health-biology
global-unspecified
sanitation
disease
coverage
gaps
drive
diarrheal
child
mortality
open
defecation
systems
african
access
have
Citation ID: WS01694
Title: Sanitation coverage gaps drive diarrheal disease and child mortality.
URL: https://www.worldsolve.org/index.php?api=problem&id=1694
Wastewater is rarely treated before discharge in many cities.
open
Global / Unspecified, Global
Untreated sewage pollutes rivers and coasts. Decentralized treatment plants and enforcement are needed.
climate-environment
global-unspecified
wastewater
rarely
treated
discharge
cities
untreated
sewage
pollutes
rivers
coasts
urban
water
african
asia
systems
waste
Citation ID: WS01695
Title: Wastewater is rarely treated before discharge in many cities.
URL: https://www.worldsolve.org/index.php?api=problem&id=1695
Watershed degradation threatens long-term water security.
open
Global / Unspecified, Global
Deforestation and erosion reduce water quality and storage. Integrated watershed management can help.
climate-environment
global-unspecified
deforestation
watershed
water
degradation
threatens
long-term
security
erosion
reduce
quality
long
urban
african
managed
over
don
Citation ID: WS01696
Title: Watershed degradation threatens long-term water security.
URL: https://www.worldsolve.org/index.php?api=problem&id=1696
Climate change is altering rainfall patterns and drought frequency.
open
Global / Unspecified, Global
Water planning based on historical norms is becoming unreliable. Scenario-based planning and storage investments are needed.
climate-environment
global-unspecified
climate-change
climate
change
altering
rainfall
patterns
drought
frequency
planning
water
based
urban
african
cities
long
rarely
Citation ID: WS01697
Title: Climate change is altering rainfall patterns and drought frequency.
URL: https://www.worldsolve.org/index.php?api=problem&id=1697
Urban utilities lose large shares of water to leaks and theft.
open
Global / Unspecified, Global
Non-revenue water undermines sustainability. IoT leak detection and smart metering can reduce losses.
climate-environment
global-unspecified
water
urban
utilities
lose
large
shares
leaks
theft
non-revenue
undermines
long
african
over
threatens
asia
Citation ID: WS01698
Title: Urban utilities lose large shares of water to leaks and theft.
URL: https://www.worldsolve.org/index.php?api=problem&id=1698
Transboundary water governance is weak in many basins.
open
Global / Unspecified, Global
Upstream and downstream users lack shared frameworks. Basin-level institutions and data platforms can reduce conflict.
society-governance
global-unspecified
transboundary
water
governance
weak
basins
upstream
downstream
users
lack
shared
data
african
many
systems
incomplete
africa
Citation ID: WS01699
Title: Transboundary water governance is weak in many basins.
URL: https://www.worldsolve.org/index.php?api=problem&id=1699
Water quality monitoring networks are sparse.
open
Global / Unspecified, Global
Communities lack data to hold polluters accountable. Low-cost sensors and open data can empower oversight.
society-governance
global-unspecified
water
quality
monitoring
networks
sparse
data
communities
lack
hold
polluters
african
incomplete
limited
systems
Citation ID: WS01700
Title: Water quality monitoring networks are sparse.
URL: https://www.worldsolve.org/index.php?api=problem&id=1700
Affordability of water tariffs is a barrier for poor households.
open
Global / Unspecified, Global
Cost-recovery policies can price out low-income users. Progressive tariff designs and targeted subsidies can balance sustainability and equity.
economics-resources
global-unspecified
affordability
water
tariffs
barrier
poor
households
cost-recovery
policies
price
out
africa
affordable
urban
remains
access
limited
Citation ID: WS01701
Title: Affordability of water tariffs is a barrier for poor households.
URL: https://www.worldsolve.org/index.php?api=problem&id=1701
Hundreds of millions lack access to electricity.
open
Global / Unspecified, Global
Remote and poor communities remain off-grid. Decentralized renewables and finance innovations can expand access.
climate-environment
global-unspecified
access
hundreds
millions
lack
electricity
remote
poor
communities
remain
off-grid
african
remains
low
limited
affordable
income
Citation ID: WS01702
Title: Hundreds of millions lack access to electricity.
URL: https://www.worldsolve.org/index.php?api=problem&id=1702
Reliance on fossil fuels continues to dominate global energy mixes.
open
Global / Unspecified, Global
Coal, oil, and gas drive emissions and pollution. Policy and technology shifts are needed for rapid decarbonization.
climate-environment
global-unspecified
reliance
fossil
fuels
continues
dominate
energy
mixes
coal
oil
don
have
philosophy-ethics
whether
waste
determine
agreed
Citation ID: WS01703
Title: Reliance on fossil fuels continues to dominate global energy mixes.
URL: https://www.worldsolve.org/index.php?api=problem&id=1703
Clean cooking access remains limited.
open
Global / Unspecified, Global
Solid-fuel use causes indoor air pollution and health harm. Clean stoves and fuels need better distribution and affordability.
climate-environment
global-unspecified
air-pollution
clean
cooking
access
remains
limited
solid-fuel
causes
indoor
air
pollution
affordable
health-biology
african
low
Citation ID: WS01704
Title: Clean cooking access remains limited.
URL: https://www.worldsolve.org/index.php?api=problem&id=1704
Grid reliability is poor in many emerging economies.
open
Global / Unspecified, Global
Frequent outages deter investment. Grid modernization and distributed backup systems can help.
technology-computing
global-unspecified
grid
reliability
poor
emerging
economies
frequent
outages
deter
investment
modernization
many
systems
african
asia
remains
whether
Citation ID: WS01705
Title: Grid reliability is poor in many emerging economies.
URL: https://www.worldsolve.org/index.php?api=problem&id=1705
Renewable integration is constrained by weak storage and transmission.
open
Global / Unspecified, Global
Solar and wind potential is underused without robust grids. Storage tech and regional interconnections are needed.
climate-environment
global-unspecified
storage
renewable
integration
constrained
weak
transmission
solar
wind
potential
underused
post
harvest
africa
losses
asia
battery
Citation ID: WS01706
Title: Renewable integration is constrained by weak storage and transmission.
URL: https://www.worldsolve.org/index.php?api=problem&id=1706
Energy affordability remains a challenge for low-income households.
open
Global / Unspecified, Global
Tariffs and upfront costs block adoption. Pay-as-you-go models and targeted subsidies can improve access.
economics-resources
global-unspecified
energy
affordability
remains
low-income
households
tariffs
upfront
costs
block
adoption
access
low
affordable
african
income
limited
Citation ID: WS01707
Title: Energy affordability remains a challenge for low-income households.
URL: https://www.worldsolve.org/index.php?api=problem&id=1707
Data on household energy use is limited.
open
Global / Unspecified, Global
Lack of granular data hinders targeted efficiency programs. Smart meters and surveys can inform policy.
society-governance
global-unspecified
data
household
energy
limited
lack
granular
hinders
targeted
efficiency
programs
incomplete
sparse
african
systems
monitoring
technology-computing
Citation ID: WS01708
Title: Data on household energy use is limited.
URL: https://www.worldsolve.org/index.php?api=problem&id=1708
E-waste from energy systems lacks proper recycling.
open
Global / Unspecified, Global
Solar panels and batteries eventually become waste. Circular recycling industries for energy tech are needed.
climate-environment
global-unspecified
energy
recycling
e-waste
systems
lacks
proper
solar
panels
batteries
eventually
waste
management
plastic
haven
Citation ID: WS01709
Title: E-waste from energy systems lacks proper recycling.
URL: https://www.worldsolve.org/index.php?api=problem&id=1709
