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
Formal construction cannot keep pace with urban population growth, leaving slums as the default option for new city arrivals. Affordable modular and 3D-printed housing ventures are gaining traction as solutions.
social-civic-problems
africa
housing
shortages
fast-growing
african
cities
pushing
millions
informal
settlements
formal
urban
global-unspecified
society-governance
climate-environment
Substandard buildings have collapsed in several African cities, killing residents, due to lax inspection and corrupt permitting. Digital building-permit and inspection tracking systems could improve enforcement.
technology-computing
africa
construction
quality
building
codes
weakly
enforced
risking
disaster
inspection
substandard
global-unspecified
systems
african
digital
climate-environment
whether
Laying fiber to remote areas is costly, so many villages rely on expensive, slow mobile data instead. Community network cooperatives and satellite backhaul could bridge the rural-urban digital divide.
science-space
africa
broadband
infrastructure
gaps
leave
rural
digitally
isolated
laying
fiber
african
digital
global-unspecified
technology-computing
remains
access
urban
High data costs limit access to online education, jobs, and business tools for lower-income users. Local infrastructure investment and spectrum-sharing policies could bring prices down.
economics-resources
africa
mobile
internet
remains
among
expensive
relative
income
worldwide
high
global-unspecified
african
technology-computing
whether
access
infrastructure
philosophy-ethics
Many skilled developers leave for remote jobs abroad or emigrate entirely due to limited local opportunities. Africa-focused tech hubs and outsourcing platforms could retain more talent domestically.
economics-resources
africa
tech
talent
local
jobs
pipeline
outpaces
number
high-quality
available
african
global-unspecified
remains
remote
society-governance
research
technology-computing
Most African internet traffic is routed through servers in Europe, increasing latency and costs. Local data center buildouts, especially in underserved regions, present strong infrastructure investment opportunities.
climate-environment
africa
data
infrastructure
centers
cloud
remain
scarce
continent
african
internet
traffic
global-unspecified
technology-computing
society-governance
systems
whether
limited
Rising digitization without matching security investment leaves banks, hospitals, and agencies vulnerable to attacks. Affordable managed cybersecurity services tailored to African SMEs are an underexplored market.
technology-computing
africa
cybersecurity
african
capacity
governments
businesses
underdeveloped
rising
digitization
matching
security
global-unspecified
whether
remains
infrastructure
digital
Few universities have the compute infrastructure or funding to pursue frontier research in these fields, risking long-term technological dependency. Shared regional compute clusters and diaspora-led research partnerships could help close this gap.
mathematics-logic
africa
research
quantum
investment
lags
far
behind
continents
compute
global-unspecified
society-governance
technology-computing
systems
philosophy-ethics
african
infrastructure
whether
Without reliable ID systems, citizens struggle to access banking, healthcare, and government services. Interoperable biometric ID platforms, if privacy-protected, could unlock major efficiency gains.
technology-computing
africa
systems
digital
identity
african
countries
incomplete
fragmented
reliable
citizens
struggle
society-governance
global-unspecified
climate-environment
economics-resources
whether
philosophy-ethics
Many streets and buildings lack formal addresses, making delivery difficult and costly for online retailers. Digital addressing apps using GPS pins could solve this cheaply.
technology-computing
africa
addressing
e-commerce
logistics
hampered
unreliable
systems
streets
buildings
lack
digital
society-governance
global-unspecified
african
social-civic-problems
grievance
online
Droughts, floods, and cyclones are intensifying across the continent despite Africa's minimal historical carbon footprint. Climate adaptation financing mechanisms tailored to African needs remain underdeveloped.
climate-environment
africa
climate-change
climate
contributes
least
emissions
but
suffers
disproportionately
change
society-governance
mechanisms
methods
global-unspecified
whether
governance
Rapid urban consumption growth has outpaced recycling infrastructure, leaving plastic waste in waterways and streets. Local plastic-to-value recycling startups could turn this waste into a resource.
climate-environment
africa
waste-management
waste
plastic
pollution
overwhelming
african
cities
limited
management
systems
recycling
local
global-unspecified
might
actors
economics-resources
Cities like Lagos, Accra, and Dakar are losing land to erosion, threatening homes and economic infrastructure. Nature-based coastal defenses like mangrove restoration are cost-effective but underutilized.
economics-resources
africa
coastal
erosion
cities
infrastructure
rising
seas
threaten
major
african
like
climate-environment
global-unspecified
urban
systems
haven
Weak vehicle emission standards and aging car imports contribute to poor urban air quality, raising respiratory illness rates. Low-cost air-quality sensor networks could inform targeted policy responses.
climate-environment
africa
air-pollution
air
vehicle
pollution
african
cities
worsening
due
emissions
industrial
activity
global-unspecified
urban
quality
asia
remains
Many African countries lack the weather stations and forecasting capacity to warn communities ahead of droughts or floods. Low-cost automated weather stations and mobile alert systems could save lives and crops.
climate-environment
africa
weather
systems
climate
data
early-warning
extreme
remain
sparse
continent
stations
society-governance
technology-computing
global-unspecified
whether
ensuring
real
open
West & Central Africa, Africa
Weak institutions, resource competition, and ethnic tensions continue to trigger instability, displacing millions. Early-warning conflict-monitoring platforms using open-source data could support faster diplomatic intervention.
society-governance
africa
west-central-africa
civil
conflicts
coups
remain
frequent
parts
west
central
weak
data
global-unspecified
institutions
asia
south
african
Allegations of fraud and weak independent oversight undermine public trust in democratic transitions. Blockchain-based or biometric voter verification systems could improve election integrity.
society-governance
africa
blockchain
electoral
processes
several
african
countries
face
credibility
transparency
allegations
fraud
systems
public
technology-computing
across
global-unspecified
Multiple agencies, unclear regulations, and informal fees discourage entrepreneurs from formalizing businesses. One-stop digital business registration portals have cut registration time dramatically where implemented.
society-governance
africa
business
bureaucratic
red
tape
makes
starting
formal
african
countries
slow
reducing
digital
global-unspecified
technology-computing
Understaffed courts leave suspects in pretrial detention for years, undermining justice and overcrowding prisons. Digital case-management systems and virtual hearings could speed up processing significantly.
society-governance
africa
systems
judicial
african
countries
suffer
severe
case
backlogs
understaffed
courts
technology-computing
digital
global-unspecified
whether
ensuring
economics-resources
Weak civil registration and statistical systems make policy planning difficult, as governments often lack reliable population and economic data. Mobile-based census and survey tools could modernize data collection affordably.
society-governance
africa
data
economic
basic
demographics
activity
remains
incomplete
continent
weak
civil
systems
global-unspecified
technology-computing
whether
philosophy-ethics
african