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
Papua New Guinea, Oceania
A persistent gap exists in realizing practical, scalable solutions for methods for reducing the environmental footprint of the global healthcare system. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
oceania
papua-new-guinea
methods
reducing
environmental
footprint
healthcare
system
breakthrough
approaches
persistent
solutions
systems
scalable
climate-environment
practical
governance
A persistent gap exists in realizing practical, scalable solutions for predictive analytics for anticipating and preventing cascading infrastructure failures. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
asia
india
predictive
analytics
anticipating
preventing
cascading
infrastructure
failures
breakthrough
approaches
persistent
solutions
systems
methods
governance
scalable
A persistent gap exists in realizing practical, scalable solutions for affordable and durable solutions for the management of household and industrial organic waste. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
europe
romania
solutions
durable
scalable
affordable
management
household
industrial
organic
waste
persistent
systems
methods
climate-environment
enabling
governance
A persistent gap exists in realizing practical, scalable solutions for ethical and technical frameworks for human-AI collaboration in high-stakes decision making. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
asia
vietnam
solutions
ethical
technical
frameworks
human-ai
collaboration
high-stakes
decision
making
systemic
systems
governance
scalable
methods
practical
A persistent gap exists in realizing practical, scalable solutions for pathways for achieving high rates of material circularity in the construction sector. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
asia
indonesia
pathways
achieving
high
rates
material
circularity
construction
sector
overcoming
barriers
solutions
systems
methods
scalable
practical
Develop shared services, workforce pathways, procurement support, tabletop exercises, and affordable tooling for municipalities responsible for essential services.
local-regional
africa
kenya
building
cyber
capacity
local
governments
services
develop
shared
workforce
pathways
technology-computing
society-governance
public
african
global-unspecified
Develop systems that preserve chain of custody, privacy, authenticity, and access in jurisdictions with uneven digital capacity and public trust.
technology-computing
asia
india
digital
secure
evidence
collection
local
police
courts
develop
systems
preserve
society-governance
public
across
trust
global-unspecified
Develop interoperable standards, open contracting, data portability, and technical capacity so public agencies retain control over essential digital systems.
technology-computing
digital
preventing
procurement
lock-in
proprietary
infrastructure
develop
interoperable
standards
open
society-governance
systems
public
data
technical
climate-environment
Create data, enforcement, housing, and tourism policies that manage short-term rental growth without harming legitimate small hosts or local economies.
social-civic-problems
europe
portugal
short-term
strengthening
city-level
capacity
regulate
rentals
create
data
enforcement
housing
society-governance
global-unspecified
african
local
technology-computing
open
Barbados, North America
Develop fair, administratively feasible methods for taxing digital economic activity without overwhelming countries with limited negotiating capacity.
economics-resources
north-america
barbados
digital
making
cross-border
taxation
workable
smaller
states
develop
fair
administratively
technology-computing
society-governance
systems
global-unspecified
creating
Create age-appropriate programs that build emotional skills, peer support, referral pathways, and teacher capacity while respecting local culture.
social-civic-problems
asia
sri-lanka
scaling
mental-health
literacy
schools
overmedicalizing
students
create
age-appropriate
programs
build
economics-resources
ecosystems
protection
education
society-governance
Create robust low-resource triage systems that recognize early sepsis using inexpensive sensors, clinical workflows, and locally calibrated machine-learning models.
local-regional
africa
uganda
sepsis
reliable
detection
clinics
laboratory
capacity
create
robust
low-resource
triage
systems
society-governance
health-biology
early
referral
open
Paraguay, South America
A persistent gap exists in realizing practical, scalable solutions for distributed methane leak detection and auto-mitigation systems. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
south-america
paraguay
systems
distributed
methane
leak
detection
auto-mitigation
field-ready
persistent
gap
exists
solutions
climate-environment
methods
ensuring
governance
open
Paraguay, South America
A persistent gap exists in realizing practical, scalable solutions for education and training systems that prepare populations for climate-driven livelihood transitions. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
south-america
paraguay
solutions
education
training
systems
prepare
populations
climate-driven
livelihood
transitions
systemic
methods
climate-environment
scalable
ensuring
designs
open
Guatemala, North America
A persistent gap exists in realizing practical, scalable solutions for mechanisms for ensuring that the benefits of the bioeconomy are shared with biodiversity-rich countries. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
north-america
guatemala
biodiversity
mechanisms
ensuring
benefits
bioeconomy
shared
biodiversity-rich
countries
breakthrough
approaches
persistent
solutions
systems
governance
scalable
A persistent gap exists in realizing practical, scalable solutions for real-time systems for detecting and responding to the illegal trade in timber and forest products. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
oceania
australia
practical
real-time
systems
detecting
responding
illegal
trade
timber
forest
products
solutions
methods
scalable
ensuring
real
open
Canada, North America
A persistent gap exists in realizing practical, scalable solutions for real-time attribution of extreme weather events to climate change for adaptation planning. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
north-america
canada
climate-change
scalable
solutions
real-time
attribution
extreme
weather
events
climate
change
adaptation
systems
climate-environment
methods
governance
Achieving methods for restoring the carbon sequestration capacity of terrestrial and coastal ecosystems 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.
climate-environment
asia
south-korea
systems
methods
restoring
carbon
sequestration
capacity
terrestrial
coastal
ecosystems
field-ready
economics-resources
society-governance
solutions
designs
ensuring
open
Colombia, South America
Electronic waste volumes in Colombia are rising rapidly, but formal recycling capacity remains minimal, pushing most e-waste into informal, hazardous dismantling operations.
climate-environment
south-america
colombia
e-waste
recycling
scaling
infrastructure
electronic
waste
volumes
rising
rapidly
global-unspecified
systems
informal
urban
african
open
New Zealand, Oceania
A persistent gap exists in realizing practical, scalable solutions for technologies for the continuous monitoring and verification of methane emissions from multiple sectors. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
oceania
new-zealand
technologies
continuous
monitoring
verification
methane
emissions
multiple
sectors
robust
methods
solutions
systems
enabling
scalable
governance