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
Global / Unspecified, Global
Smart thermostats have improved efficiency, but many systems still require manual adjustment to truly optimize comfort without wasting energy throughout changing conditions. Fully automated, effective climate optimization remains an unresolved technical challenge.
climate-environment
global-unspecified
systems
smart
comfort
energy
efficiency
yet
build
air
conditioning
heating
whether
philosophy-ethics
mathematics-logic
society-governance
technology-computing
haven
open
Global / Unspecified, Global
Solar panel efficiency has improved significantly, but in regions with less sunlight or higher installation costs, achieving full cost competitiveness with traditional energy remains inconsistent. Closing this gap universally remains an unresolved technical and economic challenge.
economics-resources
global-unspecified
make
solar
panel
efficiency
haven
found
way
high
enough
small
whether
philosophy-ethics
mathematics-logic
resolved
climate-environment
determine
open
Global / Unspecified, Global
Voice recognition systems are typically trained on standard speech patterns, making them significantly less accurate for people with speech impairments or unusual speech patterns. Closing this accessibility gap remains an underaddressed technical challenge.
health-biology
global-unspecified
speech
voice
recognition
people
impairments
don
have
reliable
way
make
whether
philosophy-ethics
resolved
determine
agreed
mathematics-logic
open
Global / Unspecified, Global
Some countries and industries pay a real cost for carbon emissions, while others pay nothing, creating an uneven playing field that undermines climate goals. A consistent global carbon price remains politically and technically unresolved.
climate-environment
global-unspecified
carbon-emissions
carbon
price
emissions
don
have
fair
way
every
country
industry
philosophy-ethics
whether
resolved
determine
agreed
open
Global / Unspecified, Global
Turning seawater into drinking water is technically possible but still too energy-intensive and expensive for many water-scarce regions. Cheaper desalination could solve water shortages for millions of people.
climate-environment
global-unspecified
seawater
drinking
don
have
reliable
way
desalinate
cheaply
enough
widespread
whether
philosophy-ethics
determine
resolved
agreed
open
Global / Unspecified, Global
Data gets copied, backed up, and shared across so many servers that a single delete request rarely removes every trace. Real digital privacy requires a technical guarantee that deletion actually means deletion.
technology-computing
global-unspecified
guarantee
data
every
personal
once
deleted
truly
gone
system
touched
society-governance
whether
trust
philosophy-ethics
building
incomplete
Achieving protocols for equitable and rapid distribution of medical countermeasures in pandemics 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.
health-biology
africa
egypt
protocols
equitable
rapid
distribution
medical
countermeasures
pandemics
systemic
solutions
addressing
economics-resources
climate-environment
systems
society-governance
methods
open
Canada, North America
Achieving solutions for managing the growing burden of mental health conditions in young populations 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.
health-biology
north-america
canada
mental-health
solutions
managing
growing
burden
mental
health
conditions
young
populations
systemic
economics-resources
society-governance
climate-environment
systems
open
Ecuador, South America
Achieving low-cost diagnostics and treatments for the major neglected tropical diseases 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.
health-biology
south-america
ecuador
low-cost
diagnostics
treatments
major
neglected
tropical
diseases
integrated
pathways
achieving
economics-resources
climate-environment
systems
society-governance
methods
open
Mexico, North America
Achieving technologies for verifying compliance with international environmental agreements 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
north-america
mexico
technologies
verifying
compliance
international
environmental
agreements
practical
realization
achieving
meaningful
economics-resources
systems
society-governance
methods
solutions
open
Guatemala, North America
Achieving protocols for the responsible sharing and use of large-scale human genomic and health 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.
economics-resources
north-america
guatemala
protocols
responsible
sharing
large-scale
human
genomic
health
data
scalable
solutions
systems
climate-environment
society-governance
methods
technology-computing
Achieving institutional designs that increase the political feasibility of ambitious climate policies 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
vietnam
institutional
designs
increase
political
feasibility
ambitious
climate
policies
breakthrough
approaches
economics-resources
systems
society-governance
methods
solutions
Achieving transparent and equitable allocation mechanisms for scarce climate finance 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
kazakhstan
transparent
equitable
allocation
mechanisms
scarce
climate
finance
overcoming
barriers
achieving
economics-resources
systems
society-governance
ensuring
solutions
Achieving systems for continuous verification of nuclear non-proliferation commitments 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
europe
sweden
systems
continuous
verification
nuclear
non-proliferation
commitments
breakthrough
approaches
achieving
meaningful
society-governance
climate-environment
technology-computing
methods
ensuring
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
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
United Kingdom, Europe
Achieving mechanisms ensuring that benefits of advanced AI are widely shared rather than concentrated 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
europe
united-kingdom
mechanisms
ensuring
benefits
advanced
widely
shared
rather
concentrated
development
achieving
systems
climate-environment
society-governance
solutions
governance
Achieving interventions that reliably increase vaccine confidence without polarizing communities 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.
health-biology
asia
nepal
interventions
reliably
increase
vaccine
confidence
polarizing
communities
robust
methods
enabling
economics-resources
climate-environment
systems
society-governance
solutions
open
Chile, South America
Achieving affordable and scalable solutions for safe sanitation in dense urban informal settlements 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
south-america
chile
affordable
scalable
solutions
safe
sanitation
dense
urban
informal
settlements
overcoming
society-governance
systems
climate-environment
methods
open
Papua New Guinea, Oceania
Achieving designs for public spaces that promote social connection and mental well-being in dense cities 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.
science-space
oceania
papua-new-guinea
designs
public
spaces
promote
social
connection
mental
well-being
dense
cities
economics-resources
climate-environment
systems
society-governance
solutions