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
The problem of raw sewage discharged directly into waterways continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly adapted to local contexts. A strong solution must operate effectively under severe constraints of skilled personnel, infrastructure, electricity and connectivity. It should define clear measurable outcomes, identify possible unintended harms, and demonstrate how the intervention can be sustained by local institutions long after initial funding ends.
raw
sewage
discharged
directly
waterways
other
open
Global / Unspecified, Global
Moon dust particles are sharp, electrostatically charged, and easily adhere to spacesuits and machinery. Electrostatic repulsion systems and dust-tolerant mechanical seals are urgently needed for lunar operations.
science-space
global-unspecified
lunar
dust
mechanical
regolith
causes
rapid
wear
atmospheric
contamination
closed
lack
systems
climate-environment
space
positioning
like
Financial intermediaries charge high transfer fees on small money transfers sent home by low-income migrant workers, stripping billions from vulnerable households.
economics-resources
asia
philippines
fees
migrant
workers
haven
eliminated
predatory
cross-border
remittance
charged
overseas
technology-computing
global-unspecified
informal
health-biology
countries
open
Global / Unspecified, Global
Many patients with chronic conditions end up back in the hospital shortly after being discharged, often due to gaps in follow-up care rather than a failure of the original treatment. Better post-discharge support remains an unresolved healthcare system issue.
health-biology
global-unspecified
hospital
chronic
patients
haven
found
reliable
way
prevent
readmissions
disease
whether
philosophy-ethics
mathematics-logic
resolved
determine
