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
Future progress on human development and planetary health depends on solving women being trafficked into sexual exploitation. Conventional approaches have proven insufficient. The required intervention must integrate community knowledge, data and appropriate technology while remaining affordable, privacy-preserving and operable with minimal external support. Strong solutions will articulate measurable impact metrics, risk mitigation strategies, and a plan for sustained operation by local actors after the pilot phase.
women
being
trafficked
sexual
exploitation
social-civic-problems
The problem of trafficking of people continuing continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly adapted to local contexts. A strong solution must operate effectively under severe constraints of skilled personnel, infrastructure, electricity and connectivity. It should define clear measurable outcomes, identify possible unintended harms, and demonstrate how the intervention can be sustained by local institutions long after initial funding ends.
people
sustainable
trafficking
continuing
designing
other
Pavements that remember and respond to historical load patterns can create uneven safety conditions. The problem is designing surfaces that remain predictably safe for all users regardless of prior traffic.
preventing
streets
adjusting
grip
based
health-biology
Roadways that shrink in real time based on predicted density can trap pedestrians and restrict access. The problem is managing crowd flow without creating physical bottlenecks that endanger people or exclude those with mobility needs.
preventing
streets
narrowing
automatically
under
health-biology
open
Global / Unspecified, Global
Aggressive scraping bots, including those collecting data to train AI models, can overload smaller websites not built to handle that volume of automated traffic. Balancing open web access with protection against this kind of strain remains unresolved.
local-regional
global-unspecified
automated
web
scraping
smaller
websites
don
have
reliable
way
prevent
whether
philosophy-ethics
resolved
determine
agreed
open
United States, North America
Automated content generation makes it cheap to flood the internet with thousands of low-value pages designed purely to capture search traffic and ad revenue. This is measurably degrading the overall usefulness of web search.
climate-environment
north-america
united-states
don
have
reliable
way
prevent
large
language
models
being
generate
global-unspecified
whether
philosophy-ethics
determine
resolved
open
Global / Unspecified, Global
As cities adopt more connected infrastructure for traffic lights, utilities, and public services, the potential attack surface for disruptive cyberattacks grows correspondingly. Comprehensive security for these interconnected systems remains inconsistently implemented.
technology-computing
global-unspecified
infrastructure
traffic
systems
haven
solved
prevent
hackers
exploiting
vulnerabilities
smart
society-governance
public
whether
philosophy-ethics
mathematics-logic
open
Global / Unspecified, Global
Automated systems can now generate huge numbers of low-quality websites designed purely to capture search traffic and advertising revenue, faster than search engines can identify and demote them. This is actively degrading the overall quality of web search.
climate-environment
global-unspecified
search
websites
build
technology
fast
enough
keep
sheer
volume
ai-generated
whether
philosophy-ethics
determine
technology-computing
resolved
don
open
Global / Unspecified, Global
A huge share of global internet traffic between continents relies on a relatively small number of undersea cables, and damage to just one can disrupt connectivity for entire regions. Building enough redundancy to fully prevent this remains costly and incomplete.
health-biology
global-unspecified
fully
undersea
internet
cables
build
network
infrastructure
prevents
outages
damaged
whether
philosophy-ethics
mathematics-logic
haven
resolved
yet
open
Global / Unspecified, Global
A surprising amount of the internet's daily traffic runs through a small number of major cloud providers, meaning a single technical failure can take down countless unrelated websites and services at once. Reducing this concentrated fragility remains an unresolved structural issue.
philosophy-ethics
global-unspecified
internet
single
failure
cloud
haven
found
way
prevent
large-scale
outages
whether
mathematics-logic
resolved
technology-computing
open
Global / Unspecified, Global
Mega-cities will produce unique mixtures of traffic accidents, air pollution, and sedentary lifestyles. Urban health observatories and built-environment intervention tools will be critical.
climate-environment
global-unspecified
air-pollution
will
pollution
urbanisation
drive
new
patterns
injury
exposure
lifestyle
disease
health
health-biology
air
african
open
South America / Unspecified, South America
Organised crime, drug trafficking, and gangs erode daily life quality and impose large economic costs on South American societies. Integrated crime-data platforms and evidence-based policing tools could support safer communities.
social-civic-problems
south-america
south-america-unspecified
crime
violence
levels
remain
high
some
places
worsening
organised
drug
technology-computing
global-unspecified
society-governance
whether
south
open
South America / Unspecified, South America
Drug trafficking, illegal mining, and wildlife crime cross borders and ecosystems. Regional crime-intelligence and monitoring platforms can support joint action.
society-governance
south-america
south-america-unspecified
crime
transnational
networks
exploit
weak
governance
geography
south
america
drug
global-unspecified
illegal
wildlife
trafficking
economics-resources
open
Global / Unspecified, Global
Unsafe roads, vehicles, and enforcement gaps create high accident rates. Safer design standards and enforcement technologies can reduce fatalities.
society-governance
global-unspecified
road
traffic
injuries
leading
cause
death
among
young
people
enforcement
reducing
african
rural
highways
open
Global / Unspecified, Global
Poaching and trafficking persist. Stronger enforcement and demand reduction are needed.
economics-resources
global-unspecified
illegal
wildlife
trade
threatens
species
poaching
trafficking
persist
stronger
enforcement
philosophy-ethics
have
society-governance
don
Growing passenger and cargo flows strain outdated airports and limited direct flight routes between African cities, increasing travel time and cost. Investment in regional aviation hubs and open-skies agreements could improve connectivity.
local-regional
africa
regional
connectivity
air
traffic
infrastructure
lag
behind
demand
growing
african
global-unspecified
access
cities
social-civic-problems
remains
asia
Response times are long due to traffic, poor coordination, and scarce vehicles. Tech-enabled ambulance dispatch and motorcycle first responder networks could reduce mortality.
health-biology
africa
access
emergency
medical
services
such
ambulances
limited
african
cities
response
global-unspecified
urban
rural
remains
asia
Cities like Manila, Jakarta, and Mumbai rank among the world's most congested, costing billions in lost time and fuel. Integrated mass-transit expansion and smart traffic-management systems are urgently needed.
economics-resources
asia
traffic
congestion
asian
megacities
causes
massive
economic
productivity
losses
cities
african
systems
urban
global-unspecified
climate-environment
infrastructure
The region serves as both source and transit hub for trafficked ivory, pangolins, and tiger parts destined for black markets. Stronger customs detection technology and cross-border enforcement cooperation are needed.
economics-resources
asia
illegal
wildlife
trafficking
remains
major
threat
endangered
species
globally
global-unspecified
philosophy-ethics
african
have
open
South & Southeast Asia, Asia
Economic desperation and weak law enforcement enable trafficking for forced labor and exploitation across the region. Cross-border data-sharing and victim-support digital platforms could improve detection and rescue.
technology-computing
asia
south-southeast-asia
trafficking
human
networks
continue
exploit
vulnerable
populations
south
southeast
digital
global-unspecified
society-governance
african
economics-resources
labor