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
Some ethical traditions treat honesty as an unconditional duty, while others argue truth should only be shared when it serves some positive purpose. This unresolved question complicates situations where truth offers little value beyond discomfort.
philosophy-ethics
global-unspecified
truth
serves
don
know
whether
humans
obligated
tell
even
benefit
haven
resolved
determine
mathematics-logic
ethical
open
Global / Unspecified, Global
Respecting cultural autonomy suggests restraint, but some practices are considered so harmful that many argue intervention becomes a moral obligation despite this respect. This unresolved tension complicates international human rights advocacy.
philosophy-ethics
global-unspecified
moral
haven
resolved
whether
humans
have
duty
intervene
failings
know
determine
mathematics-logic
don
ethical
open
Global / Unspecified, Global
Emerging technologies might dramatically reduce suffering but also carry serious unknown risks, and it remains unresolved how to weigh potential benefit against potential harm. This tension underlies debates in bioethics and existential risk.
philosophy-ethics
global-unspecified
have
technologies
reduce
suffering
don
resolved
way
determine
whether
humans
agreed
know
open
Global / Unspecified, Global
Bee populations have declined sharply in many regions, partly due to pesticide exposure, threatening the pollination that much of global food production depends on. A farming approach that protects both crops and pollinators remains incomplete.
climate-environment
global-unspecified
pollinators
haven
solved
farm
pesticides
harm
like
bees
bee
populations
whether
philosophy-ethics
way
prevent
mathematics-logic
determine
open
Global / Unspecified, Global
Fertilizer and pesticide runoff from farms create dead zones in rivers and lakes where oxygen levels drop too low to support aquatic life. Preventing this runoff without harming farm productivity remains an unresolved environmental challenge.
climate-environment
global-unspecified
runoff
haven
found
way
protect
freshwater
ecosystems
agricultural
pollution
scale
whether
philosophy-ethics
mathematics-logic
prevent
resolved
open
Global / Unspecified, Global
Desalination plants typically discharge extremely salty brine back into the ocean, which can harm nearby marine ecosystems if not managed carefully. A cleaner, more sustainable desalination process remains technically unresolved.
climate-environment
global-unspecified
haven
found
affordable
way
desalinate
water
producing
large
amounts
concentrated
whether
philosophy-ethics
mathematics-logic
resolved
prevent
open
Global / Unspecified, Global
Algal blooms can produce toxins that harm both wildlife and humans, and they're becoming more frequent as waters warm and nutrient pollution continues from agricultural runoff. Preventing these blooms before they form remains an unresolved challenge.
climate-environment
global-unspecified
blooms
algal
waters
nutrient
runoff
yet
fully
prevent
spread
harmful
whether
philosophy-ethics
mathematics-logic
way
haven
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
Textile factories, especially in regions with weaker environmental regulation, often release dye chemicals directly into rivers, causing serious water pollution. Making this process clean and affordable at industrial scale remains an unresolved challenge.
climate-environment
global-unspecified
textile
water
pollution
haven
solved
make
dyeing
manufacturing
processes
free
whether
philosophy-ethics
mathematics-logic
way
open
Global / Unspecified, Global
Artisanal mining, often for gold, frequently uses toxic mercury and lacks basic safety protections, harming both workers' health and nearby water systems. Making this widespread informal industry safer at scale remains an unresolved global challenge.
climate-environment
global-unspecified
artisanal
mining
safer
both
workers
haven
found
way
make
small-scale
philosophy-ethics
whether
mathematics-logic
resolved
open
Global / Unspecified, Global
Sophisticated fake prescriptions generated with AI assistance can be difficult for pharmacies to distinguish from legitimate ones without additional verification steps. Closing this gap remains an urgent unresolved challenge for pharmaceutical safety.
health-biology
global-unspecified
fake
prescriptions
yet
build
technology
reliably
detects
ai-generated
medical
illegally
whether
philosophy-ethics
mathematics-logic
technology-computing
way
prevent
open
Global / Unspecified, Global
Many home security systems still generate frequent false alerts from pets, shadows, or weather, reducing their practical reliability for identifying genuine security concerns. Improving this accuracy without expensive hardware remains unresolved.
society-governance
global-unspecified
security
home
systems
genuine
yet
build
camera
reliably
distinguish
between
whether
technology-computing
philosophy-ethics
mathematics-logic
haven
resolved
open
Global / Unspecified, Global
Advanced filtration technology exists, but cost and infrastructure requirements keep effective solutions out of reach for many communities facing the most severe water contamination issues. Solving this affordability and deployment challenge remains urgent.
climate-environment
global-unspecified
water
filtration
technology
effective
yet
build
affordable
enough
remove
all
philosophy-ethics
whether
mathematics-logic
haven
determine
don
open
Global / Unspecified, Global
Free expression is valued almost everywhere, but so is protection from harassment, incitement, and harmful misinformation, and these values often conflict directly. No universal line exists for where one right ends and the other begins.
philosophy-ethics
global-unspecified
speech
free
don
agree
limits
cause
real
measurable
harm
expression
whether
determine
resolved
know
haven
mathematics-logic
open
Global / Unspecified, Global
When an autonomous system makes a harmful choice, moral responsibility is hard to pin on any single party, the programmer, the company, or the AI itself. Ethics hasn't caught up with the reality of decisions made without direct human involvement.
philosophy-ethics
global-unspecified
don
have
widely
accepted
framework
deserves
blame
causes
harm
autonomous
whether
resolved
determine
know
agreed
way
open
Global / Unspecified, Global
Colonization, slavery, and resource extraction left lasting harm in many parts of the world, and debates over reparations or restitution remain unresolved almost everywhere they're raised. There's no broadly accepted framework for addressing this.
philosophy-ethics
global-unspecified
haven
settled
obligations
wealthy
nations
owe
those
harmed
historical
actions
whether
resolved
determine
know
mathematics-logic
possible
open
Global / Unspecified, Global
Bacteria are evolving resistance faster than pharmaceutical companies are creating new antibiotics to fight them. Left unresolved, common infections could become deadly again within a few decades.
health-biology
global-unspecified
bacteria
faster
new
antibiotics
stop
antibiotic-resistant
spreading
develop
evolving
resistance
philosophy-ethics
whether
haven
determine
prevent
mathematics-logic
open
Global / Unspecified, Global
When an AI makes a harmful decision, it's often unclear whether the blame falls on the developer, the user, or the company deploying it. Without clear rules, victims of AI mistakes often have no clear path to accountability.
philosophy-ethics
global-unspecified
have
don
legal
framework
assigns
responsibility
systems
cause
harm
often
whether
resolved
determine
agreed
way
know
open
Global / Unspecified, Global
Hospitals, power plants, and water systems increasingly run on connected computer systems that can be targeted remotely. A serious attack on any of these could cause harm far beyond the digital world.
technology-computing
global-unspecified
power
fully
protect
critical
infrastructure
like
grids
cyberattacks
systems
hospitals
society-governance
whether
philosophy-ethics
mathematics-logic
climate-environment
digital
open
South Africa, Africa
Develop lawful anti-poaching technologies and intelligence systems that protect wildlife without militarizing conservation or harming local communities.
society-governance
africa
south-africa
preventing
poaching
enabled
cheap
drones
encrypted
coordination
develop
lawful
anti-poaching
systems
communities
economics-resources
technology-computing
public