What World Solve is
World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.
For builders
Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.
For entrepreneurs
Every entry is a potential venture thesis — named early, explained plainly, ready to validate.
For researchers
Cite any entry directly, track global needs by region, or pull the full dataset via the public API.
1355 total logged
1355 still open
0 marked solved
7 registered profiles
We haven't solved how to prevent the long-term health effects of air pollution in densely populated cities.
open
Global / Unspecified, Global
Air pollution contributes to respiratory and cardiovascular disease in millions of people living in polluted urban areas, and treatment only addresses symptoms, not exposure. Reducing the exposure itself remains the harder, unresolved half of the problem.
Citation ID: WS00326
Title: We haven't solved how to prevent the long-term health effects of air pollution in densely populated cities.
URL: https://www.worldsolve.org/index.php?api=problem&id=326
We can't yet reliably distinguish between cancers that need aggressive treatment and those that would never cause harm.
open
Global / Unspecified, Global
Some slow-growing cancers are unlikely to ever threaten a patient's life, yet current diagnostics often can't tell them apart from dangerous ones. This leads to both overtreatment and, at times, dangerous undertreatment.
Citation ID: WS00325
Title: We can't yet reliably distinguish between cancers that need aggressive treatment and those that would never cause harm.
URL: https://www.worldsolve.org/index.php?api=problem&id=325
We don't have a reliable way to measure the true environmental cost of fast fashion across its full supply chain.
open
Global / Unspecified, Global
Clothing production involves water use, chemical dyes, and labor spread across many countries, making its full environmental cost difficult to measure accurately. Without clear measurement, meaningful accountability remains difficult to enforce.
Citation ID: WS00324
Title: We don't have a reliable way to measure the true environmental cost of fast fashion across its full supply chain.
URL: https://www.worldsolve.org/index.php?api=problem&id=324
We haven't found an affordable way to protect freshwater lakes from pollution caused by nearby agriculture.
open
Global / Unspecified, Global
Fertilizer runoff from farms feeds harmful algae blooms in nearby lakes, damaging drinking water and local ecosystems. Preventing this at the source remains cheaper than treating it after the fact, but adoption is still limited.
Citation ID: WS00323
Title: We haven't found an affordable way to protect freshwater lakes from pollution caused by nearby agriculture.
URL: https://www.worldsolve.org/index.php?api=problem&id=323
We can't yet stop mining operations from permanently damaging fragile ecosystems in resource-rich regions.
open
Global / Unspecified, Global
Mining for the metals used in batteries and electronics often destroys forests, rivers, and habitats that took centuries to form. Balancing resource needs with ecosystem protection remains a persistent unresolved tension.
Citation ID: WS00322
Title: We can't yet stop mining operations from permanently damaging fragile ecosystems in resource-rich regions.
URL: https://www.worldsolve.org/index.php?api=problem&id=322
We don't have a cost-effective way to remove microplastics already present in soil and drinking water.
open
Global / Unspecified, Global
Microplastics have been found nearly everywhere scientists have looked, including soil and tap water, yet no affordable removal method exists at scale. This leaves an existing, growing contamination problem largely unaddressed.
Citation ID: WS00321
Title: We don't have a cost-effective way to remove microplastics already present in soil and drinking water.
URL: https://www.worldsolve.org/index.php?api=problem&id=321
We haven't solved how to make composting and organic waste recycling standard practice in large cities.
open
Global / Unspecified, Global
Most food waste in large cities still ends up in landfills producing methane, despite composting being a relatively simple, well-understood solution. Scaling this to city-wide adoption remains logistically unresolved in most places.
Citation ID: WS00320
Title: We haven't solved how to make composting and organic waste recycling standard practice in large cities.
URL: https://www.worldsolve.org/index.php?api=problem&id=320
We can't yet track global tree cover loss accurately enough to enforce conservation agreements.
open
Global / Unspecified, Global
International agreements to reduce deforestation often rely on inconsistent or delayed data, making enforcement difficult. Better real-time tracking could hold countries and companies accountable for logging commitments.
Citation ID: WS00319
Title: We can't yet track global tree cover loss accurately enough to enforce conservation agreements.
URL: https://www.worldsolve.org/index.php?api=problem&id=319
We don't have an affordable way to prevent coastal erosion from steadily consuming beaches and cliffs.
open
Global / Unspecified, Global
Rising seas and stronger storms are eroding coastlines faster than in the past, threatening homes and infrastructure built near the water. Affordable, effective protection methods remain limited outside of wealthy coastal areas.
Citation ID: WS00318
Title: We don't have an affordable way to prevent coastal erosion from steadily consuming beaches and cliffs.
URL: https://www.worldsolve.org/index.php?api=problem&id=318
We haven't found a scalable way to restore degraded grasslands that once supported diverse wildlife.
open
Global / Unspecified, Global
Overgrazing and development have degraded vast grassland ecosystems worldwide, and restoration efforts remain small compared to the scale of the damage. A more scalable restoration method could recover important habitat and carbon storage.
Citation ID: WS00317
Title: We haven't found a scalable way to restore degraded grasslands that once supported diverse wildlife.
URL: https://www.worldsolve.org/index.php?api=problem&id=317
We can't yet build wearable devices that accurately monitor internal health markers without invasive testing.
open
Global / Unspecified, Global
Current wearables track surface-level signals like heart rate well, but measuring things like blood chemistry non-invasively remains far less reliable. Solving this could make preventive healthcare monitoring dramatically more accessible.
Citation ID: WS00316
Title: We can't yet build wearable devices that accurately monitor internal health markers without invasive testing.
URL: https://www.worldsolve.org/index.php?api=problem&id=316
We don't have a universally trusted method for digital voting that prevents both fraud and hacking.
open
Global / Unspecified, Global
Digital voting could make elections more accessible, but concerns about tampering and verification have kept most systems limited to smaller-scale trials. A fully trusted, secure digital voting system remains unbuilt at national scale.
Citation ID: WS00315
Title: We don't have a universally trusted method for digital voting that prevents both fraud and hacking.
URL: https://www.worldsolve.org/index.php?api=problem&id=315
We haven't found a way to make cloud computing environmentally sustainable at its current growth rate.
open
Global / Unspecified, Global
Data centers powering cloud services consume enormous amounts of electricity and water for cooling, and demand keeps climbing with AI adoption. A genuinely sustainable path for this growth remains unresolved.
Citation ID: WS00314
Title: We haven't found a way to make cloud computing environmentally sustainable at its current growth rate.
URL: https://www.worldsolve.org/index.php?api=problem&id=314
We can't yet guarantee that autonomous vehicles will make the same safe decisions a careful human driver would in every situation.
open
Global / Unspecified, Global
Self-driving systems handle most driving scenarios well, but rare, unusual situations still trip them up in ways human drivers might handle intuitively. Closing this reliability gap remains essential before full autonomy becomes truly safe.
Citation ID: WS00313
Title: We can't yet guarantee that autonomous vehicles will make the same safe decisions a careful human driver would in every situation.
URL: https://www.worldsolve.org/index.php?api=problem&id=313
We don't have affordable technology that lets people with paralysis control everyday devices as easily as using their hands.
open
Global / Unspecified, Global
Assistive technology has improved, but truly seamless, affordable control of phones, computers, and home devices for people with paralysis remains out of reach for many. Progress here could dramatically improve daily independence.
Citation ID: WS00312
Title: We don't have affordable technology that lets people with paralysis control everyday devices as easily as using their hands.
URL: https://www.worldsolve.org/index.php?api=problem&id=312
We haven't solved how to keep personal health data both useful for research and completely private.
open
Global / Unspecified, Global
Medical research benefits enormously from large shared datasets, but combining that with true patient privacy protection remains technically and legally unresolved. Better methods could unlock research without compromising individual privacy.
Citation ID: WS00311
Title: We haven't solved how to keep personal health data both useful for research and completely private.
URL: https://www.worldsolve.org/index.php?api=problem&id=311
We can't yet make voice assistants understand context and nuance as well as a human listener would.
open
Global / Unspecified, Global
Voice assistants often misinterpret complex or ambiguous requests, especially involving sarcasm, local dialects, or multi-step instructions. Bridging this understanding gap remains a persistent limitation of current systems.
Citation ID: WS00310
Title: We can't yet make voice assistants understand context and nuance as well as a human listener would.
URL: https://www.worldsolve.org/index.php?api=problem&id=310
We don't have a dependable way to verify the authenticity of scientific images and data before publication.
open
Global / Unspecified, Global
Manipulated or duplicated images occasionally slip through peer review, sometimes undermining trust in published research long after the fact. Better automated verification tools remain underdeveloped for scientific publishing.
Citation ID: WS00309
Title: We don't have a dependable way to verify the authenticity of scientific images and data before publication.
URL: https://www.worldsolve.org/index.php?api=problem&id=309
We don't have a complete picture of how many exoplanets might actually be capable of supporting complex, not just microbial, life.
open
Global / Unspecified, Global
Detecting a planet in a habitable zone is only a first step, and current tools can't yet confirm whether conditions there truly support advanced life. Refining this picture would sharpen the search for life beyond Earth.
Citation ID: WS00308
Title: We don't have a complete picture of how many exoplanets might actually be capable of supporting complex, not just microbial, life.
URL: https://www.worldsolve.org/index.php?api=problem&id=308
We haven't solved how to accurately model the long-term effects of geomagnetic storms on modern infrastructure.
open
Global / Unspecified, Global
A large enough solar storm could damage transformers and electronics across entire continents, and current models can't precisely predict which systems would fail. Better modeling could guide smarter infrastructure protection investment.
Citation ID: WS00307
Title: We haven't solved how to accurately model the long-term effects of geomagnetic storms on modern infrastructure.
URL: https://www.worldsolve.org/index.php?api=problem&id=307
