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
Antarctica / Unspecified, Antarctica
Warming may alter soil stability, hydrology, and microbial activity, affecting infrastructure and ecosystems. Long-term ground-temperature networks and modelling tools can track changes.
climate-environment
antarctica
antarctica-unspecified
changes
permafrost
active-layer
antarctic
soils
not
fully
monitored
warming
may
mathematics-logic
whether
global-unspecified
philosophy-ethics
society-governance
open
Antarctica / Unspecified, Antarctica
Sector-by-sector rules may miss combined pressures. Integrated cumulative-impact planning platforms could improve governance.
society-governance
antarctica
antarctica-unspecified
lack
robust
frameworks
manage
cumulative
fishing
tourism
research
impacts
over
governance
systems
global-unspecified
technology-computing
urban
open
Antarctica / Unspecified, Antarctica
Acoustic disturbance may affect whales, seals, and birds, but data are sparse. Acoustic monitoring networks and impact models can inform regulation.
climate-environment
antarctica
antarctica-unspecified
lack
detailed
mapping
noise
pollution
impacts
ships
aircraft
antarctic
fauna
global-unspecified
data
african
technology-computing
monitoring
open
Global / Unspecified, Global
Moons like Europa and Enceladus may harbor oceans beneath ice, but we do not know their chemical gradients or energy sources. Cryobot and plume-sampling missions could test for conditions suitable for life.
climate-environment
global-unspecified
lack
precise
constraints
habitability
subsurface
ocean
worlds
moons
like
europa
know
philosophy-ethics
whether
mathematics-logic
don
determine
open
Global / Unspecified, Global
Planets ejected from their systems may roam the galaxy unbound, affecting models of planet formation. Gravitational microlensing campaigns can constrain their population.
science-space
global-unspecified
planets
not
know
common
rogue
interstellar
space
ejected
systems
may
society-governance
models
exclusion
border
standards
procurement
open
Global / Unspecified, Global
The information paradox and firewall hypotheses highlight tension between quantum mechanics and relativity. Advances in quantum information theory and holography may clarify.
science-space
global-unspecified
quantum
information
role
black-hole
physics
unresolved
paradox
firewall
hypotheses
highlight
technology-computing
whether
haven
philosophy-ethics
mathematics-logic
infrastructure
open
Global / Unspecified, Global
People may consume enough calories but lack essential vitamins and minerals. Fortification policies and affordable supplements can address this.
health-biology
global-unspecified
but
micronutrient
deficiencies
like
anemia
widespread
often
invisible
people
may
philosophy-ethics
whether
haven
mathematics-logic
resolved
determine
Business owners may have smartphones but lack skills to use accounting, marketing, and inventory apps effectively. Tailored digital-skills training bundled with tools could improve adoption.
technology-computing
africa
digital
tools
african
smes
struggle
adopt
due
low
literacy
business
global-unspecified
remains
lack
whether
access
Rising seas and storms may force relocation of neighborhoods, but proactive plans are rare. Scenario-based urban resilience planning and relocation frameworks are urgently needed.
climate-environment
africa
planning
african
coastal
cities
lack
robust
contingency
climate-driven
migration
relocation
global-unspecified
society-governance
governance
change
urban
systems
Nurses and clinical officers may graduate with limited hands-on experience, affecting care quality. Low-cost simulation labs and VR training tools could improve competence.
health-biology
africa
training
simulation
african
health
worker
often
lacks
practical
exposure
nurses
global-unspecified
access
remains
whether
technology-computing
low
open
Global / Unspecified, Global
Some conjectures suggest that most true statements in sufficiently complex systems may have no short proof at all, only extremely long or even infinite ones. This unresolved question challenges our basic assumptions about what makes mathematics knowable.
mathematics-logic
global-unspecified
all
long
haven
proven
whether
almost
mathematical
truths
require
infinitely
philosophy-ethics
resolved
know
possible
every
open
Global / Unspecified, Global
Some mathematical truths may be true but fundamentally unprovable within any given formal system, a possibility raised by Gödel's work but not fully mapped out for all classes of statements. This unresolved boundary shapes the philosophy of computation.
technology-computing
global-unspecified
true
given
don
know
whether
every
statement
whole
numbers
eventually
philosophy-ethics
haven
resolved
mathematics-logic
possible
open
Global / Unspecified, Global
Physical pain, emotional distress, and existential anguish may all count as suffering, but it's unclear whether they deserve identical moral weight or should be treated as fundamentally different categories. This unresolved question complicates how we compare and prioritize different kinds of harm.
philosophy-ethics
global-unspecified
whether
all
suffering
don
know
possible
justify
treating
forms
ethically
resolved
haven
mathematics-logic
determine
open
Global / Unspecified, Global
Concern about how one will be remembered can shape real decisions in ways that may or may not align with genuinely ethical reasoning. This unresolved tension raises questions about the proper role of legacy in moral motivation.
philosophy-ethics
global-unspecified
ethical
legacy
remembered
moral
decisions
don
know
whether
allow
personal
resolved
determine
haven
mathematics-logic
open
Global / Unspecified, Global
If moral truths exist independently of human opinion, our task is to discover them; if not, morality may be more like a shared convention. This unresolved question underlies most ethical disagreements about right and wrong.
philosophy-ethics
global-unspecified
morality
human
don
know
whether
objective
simply
construct
moral
truths
resolved
haven
determine
mathematics-logic
ethical
open
Global / Unspecified, Global
Rights are typically grounded in things like rational agency or the ability to make claims, criteria animals may not meet, yet many people believe animals deserve protection regardless. Settling this remains an unresolved ethical challenge.
philosophy-ethics
global-unspecified
animals
rights
don
have
agreed-upon
way
determine
whether
nonhuman
hold
resolved
agreed
haven
open
Global / Unspecified, Global
Decisions made today, like saving money or maintaining health, assume some obligation to a future self who may have very different preferences and values. This unresolved question touches on both personal identity and long-term ethical responsibility.
philosophy-ethics
global-unspecified
have
obligation
future
don
agreed
way
determine
whether
humans
any
resolved
know
open
Global / Unspecified, Global
Parts of the Greenland ice sheet may have already crossed tipping points where melting continues regardless of future emissions cuts. Understanding and potentially slowing this process remains one of climate science's most urgent unresolved challenges.
climate-environment
global-unspecified
greenland
ice
sheet
yet
stop
accelerating
melt
once
passes
certain
whether
philosophy-ethics
don
determine
way
resolved
open
United States, North America
Some of the world's largest aquifers are being pumped for irrigation and drinking water far faster than natural processes can refill them. Once fully depleted, these ancient water reserves may take centuries to recover, if they recover at all.
climate-environment
north-america
united-states
fully
aquifers
yet
prevent
depletion
groundwater
took
thousands
years
form
global-unspecified
whether
philosophy-ethics
mathematics-logic
haven
open
Global / Unspecified, Global
AI-generated voice calls soliciting charitable donations can convincingly target elderly individuals who may be less familiar with distinguishing genuine from fraudulent solicitations. Detection and protective measures for this vulnerable group remain underdeveloped.
technology-computing
global-unspecified
calls
elderly
vulnerable
haven
found
way
prevent
ai-driven
automated
fake
whether
philosophy-ethics
resolved
mathematics-logic