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
Addressing coups still happening is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings with limited specialists, transport, laboratory capacity and broadband. Proposals should specify quantifiable biological, social or environmental outcomes, openly discuss potential risks, and present a realistic pathway for long-term maintenance and local ownership beyond short research pilots.
coups
happening
2030
designing
sustainable
mathematics-logic
open
Global / Unspecified, Global
A large share of pregnancy loss has no clearly identifiable cause, leaving expecting parents without answers or ways to prevent it happening again. Understanding these unexplained cases remains a significant gap in reproductive medicine.
health-biology
global-unspecified
prevent
cases
cause
don
have
reliable
way
miscarriages
unknown
large
philosophy-ethics
whether
determine
resolved
agreed
open
Global / Unspecified, Global
Zoning, housing, and infrastructure decisions are sometimes controlled by higher levels of government that move far slower than the pace of local growth. This mismatch leaves cities struggling to manage problems they can see coming but can't legally address.
society-governance
global-unspecified
manage
growth
city
governments
fast-growing
regions
often
lack
legal
authority
african
cities
urban
climate-environment
whether
infrastructure
open
Global / Unspecified, Global
Data breaches exposing millions of passwords happen with striking regularity, despite widespread awareness of the problem. A more fundamentally secure approach to authentication is still needed.
health-biology
global-unspecified
breaches
haven
found
way
stop
password
happening
regularly
data
exposing
whether
philosophy-ethics
mathematics-logic
prevent
resolved
technology-computing
open
Global / Unspecified, Global
Entire island nations and coastal communities face losing their homes permanently, with no agreed international process for where they go or who helps pay for it. This is already happening, not just a future risk.
philosophy-ethics
global-unspecified
don
have
fair
way
relocate
people
displaced
rising
sea
levels
whether
resolved
determine
agreed
haven