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.
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4194Total
4194Open
0Solved
9Humans
open
Mexico, North America
A persistent gap exists in realizing practical, scalable solutions for affordable methods for the continuous monitoring of environmental and occupational health hazards. 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
mexico
affordable
methods
continuous
monitoring
environmental
occupational
health
hazards
overcoming
barriers
solutions
systems
scalable
climate-environment
enabling
open
Brazil, South America
Achieving systems for verifying the absence of forced labor throughout complex global supply chains 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
brazil
supply-chain
systems
verifying
absence
forced
labor
throughout
complex
supply
chains
society-governance
climate-environment
technology-computing
solutions
methods
The absence of robust, context-adapted solutions for biotechnologies for producing high-performance materials from renewable feedstocks 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
fiji
biotechnologies
producing
high-performance
materials
renewable
feedstocks
practical
realization
absence
robust
solutions
systems
climate-environment
enabling
methods
open
United States, North America
Despite recognition of its importance, reliable methods for pathways for achieving universal access to safe and affordable drinking water and sanitation 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
north-america
united-states
pathways
achieving
universal
access
safe
affordable
drinking
water
sanitation
systemic
methods
society-governance
systems
solutions
economics-resources
The absence of robust, context-adapted solutions for real-time systems for predicting and mitigating the cascading impacts of climate extremes 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
romania
systems
cascading
solutions
real-time
predicting
mitigating
impacts
climate
extremes
scalable
society-governance
methods
real
time
ensuring
Achieving home-compostable polymers matching PET barrier performance 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
uganda
home-compostable
polymers
matching
pet
barrier
performance
breakthrough
approaches
achieving
meaningful
climate-environment
systems
society-governance
methods
solutions
open
Colombia, South America
Current approaches to biotechnologies for engineering plants that sequester more carbon in durable soil organic matter 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
south-america
colombia
systems
biotechnologies
engineering
plants
sequester
carbon
durable
soil
organic
matter
society-governance
enabling
solutions
under
methods
Affordable housing construction in Philippines is constrained by the high cost of imported cement and steel, while locally viable alternative materials remain underused due to lack of building code recognition.
social-civic-problems
asia
philippines
construction
affordable
housing
reducing
material
costs
constrained
high
cost
climate-environment
global-unspecified
materials
society-governance
Current approaches to governance models for ensuring the ethical development of advanced human-machine interfaces 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
oceania
samoa
governance
models
ensuring
ethical
development
advanced
human-machine
interfaces
practical
realization
systems
climate-environment
enabling
solutions
under
Current approaches to methods for restoring the health of oceans and marine ecosystems under multiple stressors 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
africa
nigeria
under
methods
restoring
health
oceans
marine
ecosystems
multiple
stressors
scalable
systems
climate-environment
enabling
solutions
approaches
Achieving affordable and durable solutions for household air pollution in biomass-dependent regions 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
africa
tanzania
air-pollution
affordable
durable
solutions
household
air
pollution
biomass-dependent
regions
development
achieving
society-governance
economics-resources
systems
methods
open
New Zealand, Oceania
Current approaches to methods for restoring the ecological function of coral reefs under ongoing climate change 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
oceania
new-zealand
climate-change
under
methods
restoring
ecological
function
coral
reefs
ongoing
climate
change
society-governance
systems
enabling
solutions
open
Canada, North America
Achieving methods for restoring the water quality and ecological function of urban rivers and lakes 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.
mathematics-logic
north-america
canada
methods
restoring
water
quality
ecological
function
urban
rivers
lakes
practical
economics-resources
climate-environment
systems
society-governance
solutions
The absence of robust, context-adapted solutions for sensor networks and models for predicting urban flood risk at street-level resolution 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
sensor
networks
models
predicting
urban
flood
risk
street-level
resolution
integrated
solutions
systems
climate-environment
robust
governance
Achieving materials enabling efficient direct conversion of sunlight to liquid fuels 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
spain
materials
enabling
efficient
direct
conversion
sunlight
liquid
fuels
systemic
solutions
climate-environment
systems
society-governance
methods
technologies
open
New Zealand, Oceania
Current approaches to low-cost continuous metabolic monitors for resource-limited diabetes care 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
oceania
new-zealand
low-cost
continuous
metabolic
monitors
resource-limited
diabetes
care
deployable
technologies
current
systems
climate-environment
enabling
approaches
solutions
open
United States, North America
A persistent gap exists in realizing practical, scalable solutions for systems ensuring the safety and reliability of autonomous vehicles in mixed traffic environments. 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
united-states
practical
systems
ensuring
safety
reliability
autonomous
vehicles
mixed
traffic
environments
solutions
methods
governance
climate-environment
scalable
Smallholder farmers in Romania lack affordable, low-evaporation water storage to bridge increasingly erratic rainy seasons, forcing crop failure during even short dry spells.
climate-environment
europe
romania
water
storage
smallholder
farmers
designing
drought-resilient
lack
affordable
low-evaporation
global-unspecified
economics-resources
urban
african
open
Canada, North America
Current approaches to neutron-resistant fusion blanket and structural materials 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
north-america
canada
approaches
neutron-resistant
fusion
blanket
structural
materials
breakthrough
current
either
underperform
systems
climate-environment
enabling
solutions
under
open
New Zealand, Oceania
Achieving biotechnologies for engineering crops that require substantially less water and fertilizer 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
oceania
new-zealand
engineering
biotechnologies
crops
require
substantially
less
water
fertilizer
practical
realization
climate-environment
systems
society-governance
methods
solutions