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 institutional arrangements that accelerate the diffusion of proven climate solutions 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.
climate-environment
asia
nepal
institutional
arrangements
accelerate
diffusion
proven
climate
solutions
integrated
pathways
current
society-governance
systems
enabling
under
designs
The absence of robust, context-adapted solutions for nature-based solutions for river basin management that balance human and ecological needs creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
asia
south-korea
solutions
human
nature-based
river
basin
management
balance
ecological
needs
systemic
systems
climate-environment
methods
enabling
robust
open
United Kingdom, Europe
The absence of robust, context-adapted solutions for solutions for providing safe dignified and sustainable livelihoods for climate-vulnerable populations creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
climate-environment
europe
united-kingdom
solutions
robust
providing
safe
dignified
sustainable
livelihoods
climate-vulnerable
populations
methods
society-governance
systems
enabling
technologies
governance
open
United States, North America
Achieving institutional arrangements that improve the integration of climate considerations into all policy domains 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.
society-governance
north-america
united-states
integration
institutional
arrangements
improve
climate
considerations
all
policy
domains
systemic
economics-resources
climate-environment
systems
solutions
designs
The absence of robust, context-adapted solutions for low-cost sensors and models for tracking plastic pollution from source to ocean creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
climate-environment
africa
zambia
solutions
low-cost
sensors
models
tracking
plastic
pollution
source
ocean
systemic
society-governance
systems
methods
robust
governance
open
Solomon Islands, Oceania
The absence of robust, context-adapted solutions for designs for digital identity systems that protect privacy while enabling service access creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
oceania
solomon-islands
enabling
systems
robust
designs
digital
identity
protect
privacy
while
service
solutions
climate-environment
technology-computing
methods
Achieving institutional arrangements that reduce the risk of catastrophic accidents involving advanced technologies 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.
society-governance
africa
ethiopia
institutional
arrangements
reduce
risk
catastrophic
accidents
involving
advanced
technologies
scalable
economics-resources
systems
climate-environment
solutions
designs
open
Colombia, South America
The absence of robust, context-adapted solutions for methods for quantifying the biodiversity and carbon co-benefits of different restoration approaches creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
climate-environment
south-america
colombia
biodiversity
methods
quantifying
carbon
co-benefits
different
restoration
approaches
overcoming
barriers
society-governance
systems
solutions
enabling
robust
The absence of robust, context-adapted solutions for methods for quantifying the full social and environmental costs of different mobility systems creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
europe
portugal
systems
methods
quantifying
full
social
environmental
costs
different
mobility
deployable
solutions
climate-environment
enabling
robust
ensuring
The absence of robust, context-adapted solutions for modular housing meeting simultaneous seismic flood and heat standards creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
oceania
samoa
modular
housing
meeting
simultaneous
seismic
flood
heat
standards
integrated
pathways
solutions
systems
climate-environment
robust
methods
The absence of robust, context-adapted solutions for solutions for providing safe drinking water in regions with high natural or anthropogenic contamination creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
asia
malaysia
solutions
natural
providing
safe
drinking
water
regions
high
anthropogenic
contamination
systems
climate-environment
methods
enabling
robust
open
Canada, North America
The absence of robust, context-adapted solutions for interventions that reliably improve mental health outcomes at population scale creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
north-america
canada
mental-health
interventions
reliably
improve
mental
health
outcomes
population
scale
development
absence
solutions
systems
climate-environment
methods
The absence of robust, context-adapted solutions for protocols for the rapid and ethical evaluation of new medical and public health interventions creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
health-biology
europe
poland
public-health
protocols
rapid
ethical
evaluation
new
medical
public
health
interventions
practical
society-governance
solutions
systems
climate-environment
open
United States, North America
The absence of robust, context-adapted solutions for scalable interventions improving executive function after chronic stress creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
north-america
united-states
scalable
solutions
interventions
improving
executive
function
chronic
stress
absence
robust
systems
climate-environment
methods
enabling
ensuring
open
Papua New Guinea, Oceania
The absence of robust, context-adapted solutions for governance frameworks for the ethical development and deployment of human enhancement technologies creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
oceania
papua-new-guinea
governance
human
solutions
frameworks
ethical
development
deployment
enhancement
technologies
scalable
systems
climate-environment
methods
enabling
ensuring
Identify and remove institutional, cultural, pedagogical, and confidence barriers that prevent girls from persisting in high-level quantitative study.
mathematics-logic
asia
pakistan
reducing
gender
exclusion
advanced
mathematics
physics
identify
remove
institutional
cultural
society-governance
arrangements
reduce
risk
designs
Despite recognition of its importance, reliable methods for institutional arrangements that improve coordination between health climate and development sectors 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
europe
france
institutional
arrangements
improve
coordination
between
health
climate
development
sectors
integrated
society-governance
methods
systems
designs
barriers
open
United States, North America
The absence of robust, context-adapted solutions for institutional designs that make long-term infrastructure investment politically durable creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
north-america
united-states
durable
institutional
designs
make
long-term
infrastructure
investment
politically
practical
realization
systems
solutions
climate-environment
methods
enabling
The absence of robust, context-adapted solutions for nature-based solutions for urban stormwater that also enhance biodiversity and amenity creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
asia
kazakhstan
biodiversity
solutions
nature-based
urban
stormwater
also
enhance
amenity
deployable
technologies
systems
climate-environment
methods
enabling
nature
open
Argentina, South America
The absence of robust, context-adapted solutions for therapeutics and care models that improve outcomes for people living with multimorbidity creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.
society-governance
south-america
argentina
systems
therapeutics
care
models
improve
outcomes
people
living
multimorbidity
field-ready
solutions
climate-environment
governance
robust
methods