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
Mangrove forests along Australia's coastline have been cleared for aquaculture and development, and restoration efforts struggle with low seedling survival rates and unclear land tenure over tidal zones.
climate-environment
oceania
australia
mangrove
along
restoring
degraded
ecosystems
coast
forests
coastline
have
global-unspecified
philosophy-ethics
whether
haven
determine
A persistent gap exists in realizing practical, scalable solutions for mycelium treatments reversing soil compaction and restoring networks. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.
society-governance
europe
sweden
mycelium
treatments
reversing
soil
compaction
restoring
networks
development
persistent
gap
solutions
systems
methods
scalable
practical
open
New Zealand, Oceania
Despite recognition of its importance, reliable methods for scalable methods for restoring peatland hydrology and carbon stocks are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.
climate-environment
oceania
new-zealand
methods
scalable
restoring
peatland
hydrology
carbon
stocks
deployable
technologies
despite
systems
society-governance
barriers
solutions
designs
Develop mapping, protection, restoration, anchoring, wastewater, and fisheries management systems for seagrass ecosystems.
climate-environment
africa
tanzania
seagrass
restoring
meadows
under
coastal
development
pressure
develop
mapping
protection
systems
society-governance
economics-resources
climate
migration
Develop indicators, incentives, and farming practices that preserve soil fungi, invertebrates, microbes, and structure while sustaining production.
climate-environment
europe
france
biodiversity
soil
protecting
intensive
agriculture
develop
indicators
incentives
farming
practices
global-unspecified
restoring
philosophy-ethics
methods
haven
Identify which barriers can be removed, modified, or bypassed to restore fish migration and sediment flow while maintaining local water and energy needs.
social-civic-problems
europe
spain
restoring
river
connectivity
fragmented
small
dams
identify
barriers
removed
modified
mathematics-logic
local
before
might
actors
Develop collection, storage, propagation, and assisted-migration strategies for native plants whose historical habitats are no longer climatically stable.
climate-environment
oceania
australia
native
restoring
seed
banks
climate-driven
ecosystem
change
develop
collection
storage
mathematics-logic
global-unspecified
species
prevent
philosophy-ethics
Create city planning and maintenance systems that support native plants, insects, birds, soil life, wetlands, and ecological connectivity.
mathematics-logic
asia
singapore
biodiversity
restoring
urban
beyond
ornamental
landscaping
create
city
planning
maintenance
climate-environment
systems
methods
ecological
society-governance
Develop practical methods to map water, sewer, power, gas, and telecom networks where records are incomplete and excavation is dangerous.
climate-environment
asia
india
managing
underground
utility
maps
unplanned
urban
growth
develop
practical
methods
water
society-governance
global-unspecified
african
restoring
open
Argentina, South America
Assess when and how neglected rail lines can be rehabilitated for low-carbon freight, regional development, and resilient transport.
climate-environment
south-america
argentina
rail
freight
restoring
corridors
abandoned
road
competition
assess
neglected
lines
across
europe
underperforms
infrastructure
united-states
Develop land-use, compensation, farming, and hydrological strategies that allow rivers to absorb floods without simply eliminating rural livelihoods.
mathematics-logic
europe
netherlands
restoring
floodplains
while
maintaining
food
production
develop
land-use
compensation
farming
climate-environment
economics-resources
global-unspecified
urban
rural
Create restoration programs that improve coastal protection and carbon storage without excluding local fishers from traditional access and livelihoods.
climate-environment
asia
indonesia
restoring
mangroves
while
protecting
customary
fishing
rights
create
restoration
programs
economics-resources
coastal
communities
local
ecosystems
Develop equitable restoration plans that improve water quality without simply displacing low-income residents or relocating pollution downstream.
climate-environment
asia
india
restoring
urban
rivers
constrained
informal
settlements
industry
develop
equitable
restoration
society-governance
economics-resources
global-unspecified
water
african
Develop restoration models that reduce emissions and fire risk while providing viable incomes for communities dependent on drained peatland agriculture.
economics-resources
asia
indonesia
restoring
degraded
peatlands
harming
local
livelihoods
develop
restoration
models
reduce
communities
social-civic-problems
might
actors
remote
Create traceability systems that can document catch location, species, labor conditions, and gear use for artisanal fishers without requiring expensive onboard technology.
economics-resources
asia
indonesia
verifying
sustainable
fishing
claims
small-scale
fleets
create
traceability
systems
document
society-governance
labor
climate-environment
restoring
fisheries
Develop scalable rehabilitation systems that combine community workers, telemedicine, low-cost devices, and culturally appropriate exercises for stroke survivors far from specialists.
health-biology
asia
india
rehabilitation
stroke
restoring
essential
access
rural
regions
develop
scalable
systems
global-unspecified
economics-resources
remains
african
whether
Achieving methods for restoring the carbon sequestration capacity of terrestrial and coastal ecosystems at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.
climate-environment
asia
south-korea
systems
methods
restoring
carbon
sequestration
capacity
terrestrial
coastal
ecosystems
field-ready
economics-resources
society-governance
solutions
designs
ensuring
Current approaches to methods for restoring the health of oceans and marine ecosystems under multiple stressors either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.
society-governance
africa
nigeria
under
methods
restoring
health
oceans
marine
ecosystems
multiple
stressors
scalable
systems
climate-environment
enabling
solutions
approaches
open
New Zealand, Oceania
Current approaches to methods for restoring the ecological function of coral reefs under ongoing climate change either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.
climate-environment
oceania
new-zealand
climate-change
under
methods
restoring
ecological
function
coral
reefs
ongoing
climate
change
society-governance
systems
enabling
solutions
open
Canada, North America
Achieving methods for restoring the water quality and ecological function of urban rivers and lakes at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.
mathematics-logic
north-america
canada
methods
restoring
water
quality
ecological
function
urban
rivers
lakes
practical
economics-resources
climate-environment
systems
society-governance
solutions