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
open
Colombia, South America
Hypertension, diabetes, and chronic kidney disease frequently go undiagnosed in Colombia until late stages because primary care lacks point-of-care testing and community health workers lack triage tools calibrated for local risk profiles.
health-biology
south-america
colombia
disease
diagnosing
non-communicable
earlier
underserved
communities
hypertension
diabetes
chronic
non
communicable
global-unspecified
health
whether
haven
Mangrove forests along Australia's coastline have been cleared for aquaculture and development, and restoration efforts struggle with low seedling survival rates and unclear land tenure over tidal zones.
climate-environment
oceania
australia
mangrove
along
restoring
degraded
ecosystems
coast
forests
coastline
have
global-unspecified
philosophy-ethics
whether
haven
determine
open
United States, North America
Develop accessible multidimensional diagnostics and treatments for chronic pain that reduce reliance on addictive medications while avoiding dismissal of patient suffering.
health-biology
north-america
united-states
chronic
pain
understanding
treating
opioid
dependence
develop
accessible
multidimensional
diagnostics
global-unspecified
philosophy-ethics
whether
haven
mathematics-logic
Develop indicators, incentives, and farming practices that preserve soil fungi, invertebrates, microbes, and structure while sustaining production.
climate-environment
europe
france
biodiversity
soil
protecting
intensive
agriculture
develop
indicators
incentives
farming
practices
global-unspecified
restoring
philosophy-ethics
methods
haven
open
United Kingdom, Europe
Build resident reporting, inspection, funding, contractor, and legal mechanisms that prevent public housing from deteriorating after construction.
social-civic-problems
europe
united-kingdom
public
housing
improving
maintenance
accountability
build
resident
reporting
inspection
funding
society-governance
safe
economics-resources
global-unspecified
haven
open
Canada, North America
Develop flexible attendance, assessment, housing, healthcare, and academic-support models for students whose conditions fluctuate unpredictably.
social-civic-problems
north-america
canada
students
making
universities
accessible
chronic
illness
develop
flexible
attendance
assessment
global-unspecified
whether
philosophy-ethics
haven
health-biology
Develop wheelchairs, prosthetics, hearing aids, and mobility devices that withstand heat, humidity, dust, rough roads, and limited repair networks.
climate-environment
africa
uganda
devices
affordable
assistive
adapted
tropical
climates
develop
wheelchairs
prosthetics
hearing
global-unspecified
philosophy-ethics
whether
haven
technology-computing
Build resilient, lawful communication channels for emergency notices, legal rights, health information, and community coordination when networks are restricted.
society-governance
asia
iran
information
ensuring
access
public
during
internet
shutdowns
build
resilient
lawful
global-unspecified
whether
philosophy-ethics
haven
health-biology
Integrate shore power, cargo equipment electrification, logistics optimization, local grids, and pollution monitoring in ports serving developing economies.
climate-environment
africa
morocco
ports
decarbonizing
maritime
beyond
vessel
fuel
switching
integrate
shore
power
haven
science-space
europe
europe-unspecified
logistics
Develop diagnostics, certification, modular design, and business models for second-life batteries without creating fire hazards or shifting disposal burdens to poorer regions.
health-biology
batteries
reusing
retired
electric-vehicle
safely
develop
diagnostics
certification
modular
design
climate-environment
systems
haven
global-unspecified
recycling
solved
waste
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 low-cost ways to map and manage rising soil salinity before farms become economically unviable due to over-irrigation, seawater intrusion, or poor drainage.
economics-resources
asia
pakistan
soil
early
detection
salinization
irrigated
farming
regions
develop
low-cost
ways
climate-environment
health-biology
global-unspecified
haven
health
open
South Africa, Africa
Design care models that maintain treatment continuity for migrants, truck drivers, seasonal workers, and displaced people who routinely cross administrative boundaries.
health-biology
africa
south-africa
tuberculosis
treatment
workers
improving
adherence
among
mobile
design
care
models
global-unspecified
economics-resources
philosophy-ethics
whether
haven
open
El Salvador, North America
Determine how heat, dehydration, pesticide exposure, and labor conditions interact to cause chronic kidney disease, then build practical prevention systems for agricultural and construction workers.
health-biology
north-america
el-salvador
kidney
disease
workers
preventing
heat-related
among
outdoor
determine
heat
dehydration
global-unspecified
haven
economics-resources
systems
philosophy-ethics
open
Brazil, South America
Develop point-of-care diagnostics for invasive and drug-resistant fungal infections, especially among immunocompromised patients in regions lacking advanced laboratories.
health-biology
south-america
brazil
diagnostics
fungal
infections
low-cost
resistant
standard
treatment
develop
point-of-care
invasive
global-unspecified
whether
philosophy-ethics
haven
mathematics-logic
Create accurate, validated screening tools that detect dangerous neonatal bilirubin levels in homes and rural clinics without requiring expensive laboratory equipment.
health-biology
asia
pakistan
neonatal
affordable
jaundice
detection
outside
hospitals
create
accurate
validated
screening
global-unspecified
whether
philosophy-ethics
haven
detect
Elections in Bangladesh have been targeted by coordinated disinformation campaigns that spread faster than fact-checking organizations and platforms can respond.
society-governance
asia
bangladesh
coordinated
disinformation
campaigns
elections
countering
targeting
have
been
targeted
global-unspecified
whether
philosophy-ethics
technology-computing
haven
Public transit systems in Australia largely lack infrastructure accommodating wheelchair users and other mobility-impaired riders, effectively excluding them from affordable transportation.
society-governance
oceania
australia
public
transit
improving
accessibility
people
disabilities
systems
largely
lack
technology-computing
global-unspecified
haven
whether
governance
open
Mexico, North America
Tuberculosis treatment in Mexico requires six or more months of consistent dosing, but migrant and seasonal workers frequently relocate mid-treatment, breaking continuity of care and driving drug-resistant strains.
health-biology
north-america
mexico
tuberculosis
treatment
migrant
workers
sustaining
adherence
among
requires
six
global-unspecified
philosophy-ethics
whether
haven
way