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 roads cutting through forests. 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.
roads
cutting
through
forests
scaling
climate-environment
Roads that rename themselves after the week’s dominant pedestrian create constant cartographic instability. The problem is allowing dynamic local identity without destroying navigational reliability.
identity
stabilising
street
when
names
health-biology
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
Poor roads, ports, and digital networks raise costs. Investment and maintenance reforms are needed.
technology-computing
global-unspecified
infrastructure
deficits
constrain
growth
regions
poor
roads
ports
digital
networks
african
economics-resources
climate-environment
remains
society-governance
Sparse populations and poor roads make rural delivery expensive, limiting e-commerce expansion beyond cities. Shared rural delivery hubs and route-optimization software could reduce costs.
technology-computing
africa
delivery
rural
costs
african
logistics
startups
face
high
last-mile
low-density
economics-resources
access
remains
public
urban
global-unspecified
Cities are growing faster than governments can build roads, utilities, and housing, leading to chronic service shortfalls. Incremental, modular urban planning approaches could help cities adapt more affordably.
society-governance
asia
urban-planning
cities
planning
rapid
unplanned
urbanization
outpacing
infrastructure
asian
growing
faster
urban
climate-environment
african
global-unspecified
systems
Poor storage, lack of cold chains, and bad rural roads mean food rots before reaching markets even amid hunger. Low-cost solar cold storage and mobile market-linkage apps are viable business opportunities.
climate-environment
africa
food
post-harvest
losses
destroy
african
production
storage
cold
poor
lack
local-regional
local
vendors
without
might
actors
Nearly a third of rural Africans live more than 2km from an all-season road, isolating farmers from buyers. Low-cost road-building techniques and community-maintained feeder roads could improve access.
economics-resources
africa
road
rural
networks
connecting
african
communities
markets
remain
poorly
developed
access
remains
global-unspecified
urban
service
public
Landslides regularly cut off remote mountain roads, blocking ground vehicles from delivering critical blood units to rural hospitals.
health-biology
asia
nepal
blood
haven
developed
scalable
drone
delivery
networks
emergency
supplies
mountainous
rural
economics-resources
service
public
global-unspecified
open
Global / Unspecified, Global
As populations shift toward cities, rural areas can be left with proportionally less political power even though they still depend heavily on government services like roads and healthcare access. Balancing this representation gap remains an unresolved tension in many democracies.
society-governance
global-unspecified
rural
less
political
representation
regions
countries
have
far
relative
needs
whether
philosophy-ethics
access
determine
way
resolved
open
Global / Unspecified, Global
Public procurement, from building roads to buying medical supplies, remains one of the most common channels for corruption worldwide. Stronger, harder-to-manipulate bidding systems remain unevenly adopted.
society-governance
global-unspecified
government
contracts
frequently
awarded
processes
vulnerable
bribery
favoritism
public
procurement
systems
corruption
resilient
whether
philosophy-ethics
technology-computing
open
Global / Unspecified, Global
Salt and chemicals used to keep roads safe in winter can wash into nearby streams and lakes, harming aquatic life over time. Finding equally effective but less harmful alternatives remains an underaddressed environmental challenge.
climate-environment
global-unspecified
salt
chemicals
harming
yet
fully
prevent
runoff
road
de-icing
freshwater
philosophy-ethics
whether
mathematics-logic
way
resolved
haven
open
Global / Unspecified, Global
Many developing countries need roads, power, and water systems but often can only afford them by taking on debt that becomes difficult to repay. Finding a fairer way to fund this development remains unresolved.
climate-environment
global-unspecified
fund
debt
haven
solved
basic
infrastructure
poorer
nations
unsustainable
developing
whether
philosophy-ethics
mathematics-logic
resolved
way
determine
Design roads, railways, pipelines, and transmission lines with wildlife crossings, routing, monitoring, and community safeguards that work at landscape scale.
climate-environment
asia
india
biodiversity
preventing
loss
linear
infrastructure
corridors
design
roads
railways
pipelines
monitoring
society-governance
technologies
enabling
continuous
Develop materials, inspection methods, protective coatings, financing, and maintenance plans for roads, ports, bridges, and water systems exposed to salt and humidity.
economics-resources
asia
philippines
preventing
corrosion
coastal
public
infrastructure
develop
materials
inspection
methods
protective
society-governance
systems
climate-environment
safe
water
Develop wheelchairs, prosthetics, hearing aids, and mobility devices that withstand heat, humidity, dust, rough roads, and limited repair networks.
climate-environment
africa
uganda
devices
affordable
assistive
adapted
tropical
climates
develop
wheelchairs
prosthetics
hearing
global-unspecified
philosophy-ethics
whether
haven
technology-computing
Develop durable, low-cost road, bridge, drainage, and maintenance approaches for areas facing increasingly erratic rainfall and flooding.
climate-environment
africa
mozambique
climate-proofing
rural
roads
connect
farmers
markets
develop
durable
low-cost
road
urban
african
economics-resources
infrastructure
access
Map and govern seasonal livestock routes so roads, farms, conservation zones, and private enclosures do not trigger conflict or livestock losses.
economics-resources
asia
mongolia
protecting
pastoralist
mobility
corridors
land
fragmentation
livestock
map
govern
seasonal
wildlife
protected
global-unspecified
reserves
reducing
Identify and preserve the habitats, flowering cycles, and landscape corridors needed to sustain native pollinators amid expanding roads, housing, and monoculture farming.
social-civic-problems
asia
turkey
protecting
pollinator
diversity
rapidly
urbanizing
agricultural
belts
identify
preserve
habitats
global-unspecified
don
have
way
prevent
Farmers in remote regions of Vietnam lose significant crop value because seasonal roads become impassable during rains, cutting off access to markets during critical selling windows.
economics-resources
asia
vietnam
remote
regions
roads
connecting
agricultural
reliable
market
during
farmers
global-unspecified
whether
philosophy-ethics
technology-computing
climate-environment