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
United Kingdom, Europe
Post-Ukraine shock adjustments and the green transition have made energy prices a salient political and economic issue. Demand-response platforms and hedging tools for SMEs can mitigate impacts.
society-governance
europe
united-kingdom
energy
price
volatility
has
become
major
concern
households
industry
variant
global-unspecified
climate-environment
europe-unspecified
european
economics-resources
open
United States, North America
Regulatory and technical bottlenecks—including differing signalling systems and capacity constraints—slow modal shift. Integrated corridor-planning tools and interoperability solutions can boost rail usage.
climate-environment
north-america
united-states
rail
freight
europe
underperforms
road
haulage
despite
climate
goals
regulatory
society-governance
systems
solutions
across
scalable
open
United States, North America
Regulatory and technical bottlenecks—including differing signalling systems and capacity constraints—slow modal shift. Integrated corridor-planning tools and interoperability solutions can boost rail usage.
climate-environment
north-america
united-states
rail
freight
europe
underperforms
road
haulage
despite
climate
goals
variant
society-governance
systems
data
solutions
infrastructure
open
Europe / Unspecified, Europe
Intermittent generation and new demand patterns strain legacy infrastructure. Grid-digitalisation and flexibility-market platforms offer major opportunities.
technology-computing
europe
europe-unspecified
energy
grids
need
significant
upgrades
integrate
renewables
cross-border
flows
systems
global-unspecified
african
data
infrastructure
climate-environment
open
Europe / Unspecified, Europe
Extreme events cause health impacts and infrastructure damage, testing adaptation plans. Urban heat and flood-risk modelling tools plus nature-based solution marketplaces can support responses.
climate-environment
europe
europe-unspecified
climate-change
flooding
heatwaves
driven
climate
change
increasingly
hit
european
cities
extreme
society-governance
urban
governance
african
open
Europe / Unspecified, Europe
Transport and industrial emissions continue to cause health burdens despite progress. Low-cost sensor networks and policy-impact simulators can guide clean-air strategies.
climate-environment
europe
europe-unspecified
air
quality
several
european
urban
regions
remains
below
standards
transport
global-unspecified
african
pollution
access
open
Europe / Unspecified, Europe
Transport and industrial emissions continue to cause health burdens despite progress. Low-cost sensor networks and policy-impact simulators can guide clean-air strategies.
climate-environment
europe
europe-unspecified
air
quality
several
european
urban
regions
remains
below
standards
variant
global-unspecified
african
data
infrastructure
open
Europe / Unspecified, Europe
Bridges, tunnels, and rail lines built decades ago require expensive renovation at a time of fiscal pressure. Asset-condition mapping and lifecycle-finance tools can prioritise investment.
climate-environment
europe
europe-unspecified
ageing
transport
infrastructure
needs
major
renewal
bridges
tunnels
rail
african
systems
africa
climate
global-unspecified
remains
open
Europe / Unspecified, Europe
Changing rainfall patterns and heat waves strain agriculture and urban supplies. Basin-level modelling and demand-management platforms can help cities and farmers adapt.
climate-environment
europe
europe-unspecified
water-scarcity
water
scarcity
droughts
increasingly
affecting
southern
changing
rainfall
patterns
urban
cities
african
climate
global-unspecified
open
Europe / Unspecified, Europe
Intensive agriculture and urban expansion reduce habitats for key species. Monitoring tools and incentive platforms for nature-positive land use can support recovery.
climate-environment
europe
europe-unspecified
biodiversity
loss
european
landscapes
threatens
ecosystem
services
intensive
agriculture
urban
global-unspecified
african
society-governance
systems
monitoring
open
United States, North America
Kepler and other missions have identified thousands of exoplanets, but we lack robust statistics on Earth-size worlds with stable climates and liquid water. Next-generation transit and direct-imaging missions must refine occurrence rates.
climate-environment
north-america
united-states
not
know
common
truly
earth-like
habitable
planets
missions
kepler
global-unspecified
whether
philosophy-ethics
science-space
don
determine
open
Global / Unspecified, Global
Observations show billion-solar-mass black holes early in cosmic history, which standard growth models struggle to explain. Improved surveys of high-redshift quasars and simulations of direct-collapse scenarios are needed.
climate-environment
global-unspecified
black
holes
not
fully
understand
supermassive
form
grow
observations
show
science-space
know
dark
matter
actually
what
open
Global / Unspecified, Global
Solar flares, coronal mass ejections, and stellar winds shape atmospheric escape and habitability, yet models remain approximate. Continuous monitoring and improved magnetohydrodynamic simulations can refine predictions.
science-space
global-unspecified
space
weather
effects
planetary
atmospheres
not
fully
quantified
solar
flares
know
climate-environment
continuous
understand
dark
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
Objects in the distant solar system could reveal formation history and the presence of rogue planets, but only a few have been discovered. Wide-field deep surveys and improved orbit determination are needed.
climate-environment
global-unspecified
distribution
small
bodies
beyond
kuiper
belt
poorly
mapped
objects
distant
whether
know
philosophy-ethics
science-space
don
have
open
Global / Unspecified, Global
Magnetic storms and particle fluxes shape space weather and radiation hazards but are hard to predict. Better in situ measurements and coupled simulations can improve forecasts.
science-space
global-unspecified
not
yet
have
complete
models
planetary
magnetosphere
solar
wind
interactions
whether
know
haven
mathematics-logic
philosophy-ethics
climate-environment
open
Global / Unspecified, Global
Inflationary models explain early expansion but differ in predictions for primordial fluctuations and multiverse scenarios. Precision measurements of the cosmic microwave background and primordial gravitational waves could distinguish models.
economics-resources
global-unspecified
cosmic
fine
details
inflation
remain
speculative
models
primordial
inflationary
explain
science-space
know
climate-environment
have
society-governance
dark
open
Global / Unspecified, Global
Decoherence, error correction overhead, and materials issues limit current prototypes. New architectures and fault-tolerant schemes are needed.
technology-computing
global-unspecified
designing
practical
scalable
quantum
computers
remains
open
engineering
physics
decoherence
society-governance
climate-environment
high
institutions
democratic
speed
open
Global / Unspecified, Global
Existing tests focus on known-answer questions rather than open research tasks. Benchmarks that evaluate models on genuine research subtasks can guide development.
society-governance
global-unspecified
benchmarks
lack
robust
systems
performing
frontier
scientific
reasoning
research
existing
economics-resources
climate-environment
governance
technology-computing
ensuring
models
open
Global / Unspecified, Global
Observed exoplanet diversity challenges simple core-accretion models. High-resolution imaging of disks and improved simulations are needed.
climate-environment
global-unspecified
models
disks
not
have
complete
planetary
formation
protoplanetary
observed
exoplanet
science-space
know
fully
whether
understand
