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
Current approaches to real-time digital twins of entire river basins for adaptive management either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.
technology-computing
asia
thailand
real-time
digital
twins
entire
river
basins
adaptive
management
integrated
pathways
society-governance
systems
climate-environment
enabling
approaches
open
Colombia, South America
Current approaches to housing and land systems that prevent displacement during climate-driven migration either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.
social-civic-problems
south-america
colombia
systems
housing
land
prevent
displacement
during
climate-driven
migration
practical
realization
society-governance
climate-environment
technology-computing
enabling
under
Despite recognition of its importance, reliable methods for institutional designs that make long-term investments in public health infrastructure politically sustainable are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.
health-biology
oceania
samoa
public-health
institutional
designs
make
long-term
investments
public
health
infrastructure
politically
sustainable
climate-environment
society-governance
methods
systems
Achieving circular design rules and tracking systems for high-value consumer electronics at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.
economics-resources
africa
senegal
systems
circular
design
rules
tracking
high-value
consumer
electronics
systemic
solutions
society-governance
climate-environment
technology-computing
ensuring
methods
open
Ecuador, South America
Despite recognition of its importance, reliable methods for mechanisms for aligning the incentives of technology companies with broader societal goals are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.
climate-environment
south-america
ecuador
mechanisms
aligning
incentives
technology
companies
broader
societal
goals
integrated
pathways
methods
systems
barriers
society-governance
designs
Low-income households in Kenya have almost no financial protection against climate-driven income shocks, and existing microinsurance products remain too costly or poorly understood to achieve meaningful uptake.
climate-environment
africa
kenya
products
against
shocks
low-income
households
designing
insurance
climate
have
economics-resources
income
community
global-unspecified
scale
Achieving systems ensuring the long-term stewardship and accessibility of scientific knowledge and data at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.
local-regional
africa
dr-congo
systems
ensuring
long-term
stewardship
accessibility
scientific
knowledge
data
development
achieving
society-governance
economics-resources
climate-environment
technology-computing
designs
Achieving pathways for transitioning fossil-fuel dependent regions to diversified economies at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.
economics-resources
asia
china
pathways
transitioning
fossil-fuel
dependent
regions
diversified
economies
scalable
solutions
achieving
climate-environment
systems
society-governance
methods
designs
Current approaches to interventions that improve the quality and equity of primary healthcare delivery either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.
society-governance
europe
spain
equity
interventions
improve
quality
primary
healthcare
delivery
scalable
solutions
current
systems
climate-environment
enabling
approaches
under
Translate quantum sensing advances into rugged, affordable tools for detecting pollutants, groundwater changes, magnetic anomalies, and infrastructure defects.
climate-environment
quantum
sensing
low-cost
environmental
monitoring
translate
advances
rugged
affordable
tools
infrastructure
technology-computing
society-governance
science-space
global-unspecified
health-biology
Integrate agronomy, nutrition, processing, taste, markets, policy, and cultural preferences to enable adoption of resilient crops.
climate-environment
africa
crops
understanding
some
climate-resilient
remain
underutilized
integrate
agronomy
nutrition
processing
climate
resilient
food
long
term
preservation
Develop practical biomonitoring and exposure assessment for workers in recycling, dyeing, tanning, metalwork, and small manufacturing.
economics-resources
asia
india
exposure
detecting
toxic
informal
industrial
work
develop
practical
biomonitoring
assessment
climate-environment
workers
waste
global-unspecified
african
Create datasets, validation standards, monitoring, and governance so diagnostic AI works reliably across devices, sites, skin tones, and patient populations.
health-biology
populations
reproducible
medical
imaging
diverse
create
datasets
validation
standards
monitoring
global-unspecified
whether
philosophy-ethics
society-governance
climate-environment
prevent
mathematics-logic
Develop delivery systems, manufacturing, payment models, and governance that move gene therapies beyond rare diseases and wealthy health systems.
society-governance
delivery
diseases
safe
equitable
gene-therapy
common
systems
develop
manufacturing
payment
climate-environment
governance
health-biology
technology-computing
economics-resources
ensuring
models
Build locally actionable models of how warming, rainfall, urbanization, immunity, and mobility reshape mosquito- and tick-borne disease risks.
climate-environment
africa
east-africa
disease
understanding
climate
effects
vector-borne
range
shifts
build
locally
actionable
health-biology
society-governance
global-unspecified
whether
non
Develop affordable, durable coatings, roofs, walls, and textiles that reduce indoor heat without high energy use or toxic material tradeoffs.
economics-resources
asia
india
heat
robust
materials
passive
cooling
extreme
develop
affordable
durable
coatings
society-governance
climate-environment
systems
designs
high
open
Canada, North America
Develop accurate sensors, sampling methods, building diagnostics, and remediation guidance for homes, schools, and workplaces.
health-biology
north-america
canada
low-cost
tools
detecting
indoor
mold
health
risks
develop
accurate
sensors
methods
low
climate-environment
cost
society-governance
open
United States, North America
Create standards, repositories, incentives, training, and connectivity solutions that allow scientists outside elite institutions to access and contribute reproducible data.
society-governance
north-america
united-states
data
institutions
making
research
reusable
low-resource
create
standards
repositories
incentives
economics-resources
systems
public
technology-computing
climate-environment
Develop lower-waste consumables, chemical substitution, energy-efficient equipment, and procurement systems without compromising scientific rigor.
climate-environment
europe
germany
reducing
environmental
footprint
laboratory
research
develop
lower-waste
consumables
chemical
substitution
systems
society-governance
technology-computing
procurement
economics-resources
Develop strains, feedstocks, reactors, safety protocols, and business models that can produce nutritious proteins without depending on costly imported inputs.
society-governance
asia
india
affordable
precision
fermentation
low-resource
food
systems
develop
strains
feedstocks
reactors
climate-environment
safety
ensuring
low
resource