World Solve — A living repository of problems worth solving.

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.

2165 total logged

2165 still open

0 marked solved

8 registered profiles

We still don't know whether it's possible to justify prioritizing quality of life over simply extending the length of life in medical decisions.

open Global / Unspecified, Global

Medical ethics constantly requires weighing longer survival against potential suffering, and no single framework has fully resolved how this tradeoff should be decided. This unresolved question remains deeply relevant in end-of-life care.

philosophy-ethics global-unspecified life medical don know whether possible justify prioritizing quality over resolved haven mathematics-logic determine

WS01124 · Logged by The Internet (citizen_of_earth) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01124 Title: We still don't know whether it's possible to justify prioritizing quality of life over simply extending the length of life in medical decisions. URL: https://www.worldsolve.org/index.php?api=problem&id=1124

We haven't resolved whether humans have a duty to intervene in the moral failings of other cultures we don't belong to.

open Global / Unspecified, Global

Respecting cultural autonomy suggests restraint, but some practices are considered so harmful that many argue intervention becomes a moral obligation despite this respect. This unresolved tension complicates international human rights advocacy.

philosophy-ethics global-unspecified moral haven resolved whether humans have duty intervene failings know determine mathematics-logic ethical don

WS01125 · Logged by The Internet (late_night_reader) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01125 Title: We haven't resolved whether humans have a duty to intervene in the moral failings of other cultures we don't belong to. URL: https://www.worldsolve.org/index.php?api=problem&id=1125

We don't have an agreed way to determine whether people can be blamed for beliefs they didn't consciously choose to hold.

open Global / Unspecified, Global

Beliefs are often shaped by upbringing, culture, and circumstance rather than deliberate choice, raising doubt about whether people can be fairly held responsible for holding them. This unresolved question complicates debates over prejudice and moral accountability.

philosophy-ethics global-unspecified whether people beliefs don have agreed way determine blamed didn resolved know haven ethical

WS01126 · Logged by The Internet (hello_world) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01126 Title: We don't have an agreed way to determine whether people can be blamed for beliefs they didn't consciously choose to hold. URL: https://www.worldsolve.org/index.php?api=problem&id=1126

We still don't know whether it's ethical to prioritize the survival of humanity as a species over the wellbeing of currently existing individuals.

open Global / Unspecified, Global

Some long-term ethical frameworks argue humanity's continued existence matters more than any individual's current suffering, while others reject sacrificing real people for abstract future outcomes. This unresolved tension is increasingly relevant to debates on existential risk.

philosophy-ethics global-unspecified ethical humanity don know whether prioritize survival species over wellbeing resolved haven determine mathematics-logic

WS01127 · Logged by The Internet (field_notes) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01127 Title: We still don't know whether it's ethical to prioritize the survival of humanity as a species over the wellbeing of currently existing individuals. URL: https://www.worldsolve.org/index.php?api=problem&id=1127

We haven't figured out whether it's possible to fully justify preferring familiar customs over objectively better alternatives simply because they're familiar.

open Global / Unspecified, Global

People often continue traditions or habits even when better alternatives clearly exist, and it's unclear whether familiarity alone provides any genuine moral justification for this preference. This unresolved question touches on the nature of rational choice itself.

philosophy-ethics global-unspecified familiar whether better alternatives haven figured out possible fully justify resolved know mathematics-logic determine ethical

WS01128 · Logged by The Internet (gray_matter) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01128 Title: We haven't figured out whether it's possible to fully justify preferring familiar customs over objectively better alternatives simply because they're familiar. URL: https://www.worldsolve.org/index.php?api=problem&id=1128

We don't have a resolved way to determine whether humans have an obligation to develop technologies that could reduce suffering, even if risky.

open Global / Unspecified, Global

Emerging technologies might dramatically reduce suffering but also carry serious unknown risks, and it remains unresolved how to weigh potential benefit against potential harm. This tension underlies debates in bioethics and existential risk.

philosophy-ethics global-unspecified have technologies reduce suffering don resolved way determine whether humans agreed know haven

WS01129 · Logged by The Internet (hello_world) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01129 Title: We don't have a resolved way to determine whether humans have an obligation to develop technologies that could reduce suffering, even if risky. URL: https://www.worldsolve.org/index.php?api=problem&id=1129

We still don't know whether an act done with good intentions but a bad outcome is more or less blameworthy than the reverse.

open Global / Unspecified, Global

Some frameworks emphasize the intentions behind an act, while others focus purely on the actual consequences, leading to very different moral judgments in identical situations. This unresolved tension remains a foundational issue in ethical theory.

philosophy-ethics global-unspecified act intentions don know whether done good but bad outcome resolved haven determine mathematics-logic possible

WS01130 · Logged by The Internet (echo_chamber_no) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01130 Title: We still don't know whether an act done with good intentions but a bad outcome is more or less blameworthy than the reverse. URL: https://www.worldsolve.org/index.php?api=problem&id=1130

We haven't resolved whether it's ethical to shield children from difficult truths about the world for the sake of their wellbeing.

open Global / Unspecified, Global

Protecting children's emotional wellbeing seems intuitively right, but doing so can also delay their ability to understand and navigate the real world accurately. This unresolved tension appears constantly in parenting and education.

philosophy-ethics global-unspecified children world wellbeing haven resolved whether ethical shield difficult truths know determine mathematics-logic possible

WS01131 · Logged by The Internet (seaglass) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01131 Title: We haven't resolved whether it's ethical to shield children from difficult truths about the world for the sake of their wellbeing. URL: https://www.worldsolve.org/index.php?api=problem&id=1131

We don't have an agreed way to determine whether humans have any moral obligation toward hypothetical future versions of themselves.

open Global / Unspecified, Global

Decisions made today, like saving money or maintaining health, assume some obligation to a future self who may have very different preferences and values. This unresolved question touches on both personal identity and long-term ethical responsibility.

philosophy-ethics global-unspecified have obligation future don agreed way determine whether humans any resolved know haven

WS01132 · Logged by The Internet (the_lurker) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01132 Title: We don't have an agreed way to determine whether humans have any moral obligation toward hypothetical future versions of themselves. URL: https://www.worldsolve.org/index.php?api=problem&id=1132

We don't have an affordable way to remove methane already accumulated in the atmosphere.

open Global / Unspecified, Global

Methane traps far more heat than carbon dioxide in the short term, yet nearly all climate technology focuses on capturing carbon dioxide instead. A cheap way to actively remove atmospheric methane could meaningfully slow near-term warming.

climate-environment global-unspecified methane way remove don have affordable already accumulated atmosphere carbon philosophy-ethics whether determine agreed resolved

WS00953 · Logged by The Internet (open_thinker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00953 Title: We don't have an affordable way to remove methane already accumulated in the atmosphere. URL: https://www.worldsolve.org/index.php?api=problem&id=953

We can't yet stop the accelerating melt of the Greenland ice sheet once it passes certain thresholds.

open Global / Unspecified, Global

Parts of the Greenland ice sheet may have already crossed tipping points where melting continues regardless of future emissions cuts. Understanding and potentially slowing this process remains one of climate science's most urgent unresolved challenges.

climate-environment global-unspecified greenland ice sheet yet stop accelerating melt once passes certain philosophy-ethics whether don resolved determine agreed

WS00954 · Logged by The Internet (anon_1904) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00954 Title: We can't yet stop the accelerating melt of the Greenland ice sheet once it passes certain thresholds. URL: https://www.worldsolve.org/index.php?api=problem&id=954

We haven't found a way to protect coastal cities from sea level rise without displacing the communities living there.

open Global / Unspecified, Global

Sea walls and barriers can protect some areas but often shift flooding risk elsewhere or fail to address long-term relocation needs. A truly sustainable coastal adaptation strategy remains incomplete in most vulnerable regions.

climate-environment global-unspecified protect coastal sea haven found way cities level rise displacing philosophy-ethics whether mathematics-logic resolved determine

WS00955 · Logged by The Internet (the_lurker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00955 Title: We haven't found a way to protect coastal cities from sea level rise without displacing the communities living there. URL: https://www.worldsolve.org/index.php?api=problem&id=955

We don't have a scalable way to prevent the Amazon rainforest from crossing a tipping point into permanent dieback.

open Global / Unspecified, Global

Deforestation and rising temperatures are pushing parts of the Amazon toward a state where it can no longer sustain itself as rainforest. Preventing this shift before it becomes irreversible remains an urgent, unresolved challenge.

climate-environment global-unspecified deforestation amazon rainforest don have scalable way prevent crossing tipping point philosophy-ethics whether determine agreed resolved

WS00956 · Logged by The Internet (gray_matter) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00956 Title: We don't have a scalable way to prevent the Amazon rainforest from crossing a tipping point into permanent dieback. URL: https://www.worldsolve.org/index.php?api=problem&id=956

We can't reliably predict how quickly permafrost will thaw and release trapped greenhouse gases.

open Global / Unspecified, Global

Vast amounts of carbon and methane are locked in frozen Arctic soil, and as it thaws, it could release gases faster than current climate models predict. Better prediction tools are needed to understand how much this will accelerate warming.

climate-environment global-unspecified predict will release gases reliably quickly permafrost thaw trapped greenhouse yet methane farming climate haven rice

WS00957 · Logged by The Internet (gray_matter) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00957 Title: We can't reliably predict how quickly permafrost will thaw and release trapped greenhouse gases. URL: https://www.worldsolve.org/index.php?api=problem&id=957

We haven't solved how to farm without using pesticides that harm pollinators like bees.

open Global / Unspecified, Global

Bee populations have declined sharply in many regions, partly due to pesticide exposure, threatening the pollination that much of global food production depends on. A farming approach that protects both crops and pollinators remains incomplete.

climate-environment global-unspecified pollinators haven solved farm pesticides harm like bees bee populations prevent whether philosophy-ethics way health-biology food

WS00958 · Logged by The Internet (null_pointer) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00958 Title: We haven't solved how to farm without using pesticides that harm pollinators like bees. URL: https://www.worldsolve.org/index.php?api=problem&id=958

We don't have an affordable way to restore degraded farmland back to healthy, productive soil at scale.

open Global / Unspecified, Global

Vast areas of farmland worldwide have been degraded by decades of intensive use, and restoring their fertility can take years even with the right techniques. Scaling this restoration affordably remains an unresolved agricultural challenge.

climate-environment global-unspecified have degraded farmland don affordable way restore back healthy productive philosophy-ethics whether determine agreed resolved prevent

WS00959 · Logged by The Internet (open_thinker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00959 Title: We don't have an affordable way to restore degraded farmland back to healthy, productive soil at scale. URL: https://www.worldsolve.org/index.php?api=problem&id=959

We can't yet stop invasive species from spreading and displacing native wildlife across ecosystems.

open Global / Unspecified, Global

Invasive plants and animals introduced by global trade and travel can outcompete native species, sometimes causing lasting ecological damage before anyone intervenes. Effective, scalable methods for controlling their spread remain incomplete.

mathematics-logic global-unspecified invasive species native yet stop spreading displacing wildlife ecosystems plants prevent philosophy-ethics have don determine way

WS00960 · Logged by The Internet (field_notes) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00960 Title: We can't yet stop invasive species from spreading and displacing native wildlife across ecosystems. URL: https://www.worldsolve.org/index.php?api=problem&id=960

We haven't found a way to protect freshwater ecosystems from agricultural runoff pollution at scale.

open Global / Unspecified, Global

Fertilizer and pesticide runoff from farms create dead zones in rivers and lakes where oxygen levels drop too low to support aquatic life. Preventing this runoff without harming farm productivity remains an unresolved environmental challenge.

climate-environment global-unspecified runoff haven found way protect freshwater ecosystems agricultural pollution scale whether philosophy-ethics prevent mathematics-logic resolved

WS00961 · Logged by The Internet (citizen_of_earth) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00961 Title: We haven't found a way to protect freshwater ecosystems from agricultural runoff pollution at scale. URL: https://www.worldsolve.org/index.php?api=problem&id=961

We don't have an effective global system to track and reduce illegal fishing in international waters.

open Global / Unspecified, Global

Vast stretches of ocean lie beyond any single nation's jurisdiction, making it difficult to monitor and stop illegal fishing that depletes fish populations faster than they can recover. Closing this enforcement gap remains an unresolved challenge.

climate-environment global-unspecified illegal fishing don have effective system track reduce international philosophy-ethics whether determine agreed resolved way mathematics-logic

WS00962 · Logged by The Internet (offline_mode) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00962 Title: We don't have an effective global system to track and reduce illegal fishing in international waters. URL: https://www.worldsolve.org/index.php?api=problem&id=962

We can't yet fully prevent the bleaching and death of coral reefs during marine heat waves.

open Global / Unspecified, Global

Rising ocean temperatures trigger coral bleaching events that can kill reefs outright if heat stress lasts too long, and current interventions can only help a small fraction of affected reefs. Scaling protection to match the pace of warming remains unresolved.

climate-environment global-unspecified reefs bleaching coral heat yet fully prevent death during marine whether health-biology pollution mathematics-logic

WS00963 · Logged by The Internet (paper_trail) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00963 Title: We can't yet fully prevent the bleaching and death of coral reefs during marine heat waves. URL: https://www.worldsolve.org/index.php?api=problem&id=963

Log in

Register

Repository Status

2165 public problems
2165 open challenges
0 solved entries
0 under moderation

Filtering Tips

Search by title keyword, country, or theme.
Use category + continent together for better narrowing.
Click any citation code to copy a direct reference format.