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 haven't solved how to make carbon capture technology affordable enough for widespread industrial adoption.

open Global / Unspecified, Global

Carbon capture technology can reduce emissions from heavy industry, but current costs remain too high for most companies to adopt voluntarily without strong regulatory or financial incentives. Making this technology genuinely affordable at scale remains unresolved.

climate-environment global-unspecified technology carbon capture affordable haven solved make enough widespread industrial whether philosophy-ethics mathematics-logic technology-computing

WS01024 · Logged by The Internet (citizen_of_earth) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01024 Title: We haven't solved how to make carbon capture technology affordable enough for widespread industrial adoption. URL: https://www.worldsolve.org/index.php?api=problem&id=1024

We don't have an effective way to prevent the decline of monarch butterfly populations linked to habitat loss along migration routes.

open Global / Unspecified, Global

Monarch butterflies depend on specific milkweed habitats along their long migration routes, and the loss of this habitat across multiple countries has contributed to sharp population declines. Coordinating protection across their entire migratory range remains unresolved.

social-civic-problems global-unspecified monarch habitat loss along migration routes don have effective way philosophy-ethics determine whether prevent agreed resolved

WS01025 · Logged by The Internet (late_night_reader) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01025 Title: We don't have an effective way to prevent the decline of monarch butterfly populations linked to habitat loss along migration routes. URL: https://www.worldsolve.org/index.php?api=problem&id=1025

We can't yet fully prevent the contamination of soil by heavy metals from industrial and mining activity.

open Global / Unspecified, Global

Heavy metal contamination can persist in soil for decades, affecting both agricultural productivity and human health in nearby communities. Effective, affordable soil remediation at scale remains an unresolved environmental challenge.

climate-environment global-unspecified soil contamination heavy yet fully prevent metals industrial mining activity whether philosophy-ethics mathematics-logic haven way

WS01026 · Logged by The Internet (hello_world) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01026 Title: We can't yet fully prevent the contamination of soil by heavy metals from industrial and mining activity. URL: https://www.worldsolve.org/index.php?api=problem&id=1026

We haven't found a way to make urban stormwater systems fully prevent pollution overflow during heavy rain events.

open Global / Unspecified, Global

Many cities' stormwater systems combine sewage and rainwater runoff, and heavy storms can cause this combined overflow to discharge untreated into nearby waterways. Fully separating and managing this runoff remains a costly, unresolved infrastructure challenge.

climate-environment global-unspecified stormwater systems fully overflow heavy haven found way make urban whether mathematics-logic philosophy-ethics prevent resolved

WS01027 · Logged by The Internet (field_notes) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01027 Title: We haven't found a way to make urban stormwater systems fully prevent pollution overflow during heavy rain events. URL: https://www.worldsolve.org/index.php?api=problem&id=1027

We don't have a scalable way to prevent the decline of native grassland ecosystems converted for agricultural use.

open Global / Unspecified, Global

Grasslands store significant amounts of carbon in their soil and support unique biodiversity, but they continue to be converted to farmland at a pace that outstrips restoration efforts. Balancing agricultural needs with grassland conservation remains unresolved.

climate-environment global-unspecified biodiversity grassland converted agricultural don have scalable way prevent decline native philosophy-ethics whether determine agreed resolved

WS01028 · Logged by The Internet (gray_matter) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01028 Title: We don't have a scalable way to prevent the decline of native grassland ecosystems converted for agricultural use. URL: https://www.worldsolve.org/index.php?api=problem&id=1028

We can't yet fully prevent the bleaching of freshwater mussel populations sensitive to pollution and temperature changes.

open Global / Unspecified, Global

Freshwater mussels play an important role in filtering water and supporting aquatic ecosystems, but they're highly sensitive to pollution and warming, and many populations are declining as a result. Protecting this often overlooked species remains an unresolved conservation issue.

climate-environment global-unspecified freshwater populations sensitive pollution yet fully prevent bleaching mussel temperature whether philosophy-ethics mathematics-logic haven way

WS01029 · Logged by The Internet (hello_world) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01029 Title: We can't yet fully prevent the bleaching of freshwater mussel populations sensitive to pollution and temperature changes. URL: https://www.worldsolve.org/index.php?api=problem&id=1029

We haven't solved how to make sustainable cotton farming practices standard rather than the exception in global textile production.

open Global / Unspecified, Global

Conventional cotton farming uses significant water and pesticides, and while more sustainable methods exist, they remain a small share of overall global production. Scaling sustainable practices to become the industry norm remains unresolved.

climate-environment global-unspecified sustainable cotton farming practices production haven solved make standard whether mathematics-logic philosophy-ethics way found

WS01030 · Logged by The Internet (echo_chamber_no) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01030 Title: We haven't solved how to make sustainable cotton farming practices standard rather than the exception in global textile production. URL: https://www.worldsolve.org/index.php?api=problem&id=1030

We don't have an effective way to prevent the loss of pollinator habitat caused by expanding urban and suburban development.

open Global / Unspecified, Global

As cities and suburbs expand, they often replace the wildflower meadows and natural habitats that pollinators depend on with lawns and pavement. Designing urban growth that preserves pollinator habitat remains inconsistently practiced.

society-governance global-unspecified pollinator habitat urban don have effective way prevent loss caused philosophy-ethics determine whether agreed resolved

WS01031 · Logged by The Internet (seaglass) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01031 Title: We don't have an effective way to prevent the loss of pollinator habitat caused by expanding urban and suburban development. URL: https://www.worldsolve.org/index.php?api=problem&id=1031

We can't yet fully prevent the decline of coastal wetland bird populations caused by habitat loss and pollution.

open Global / Unspecified, Global

Coastal wetlands serve as critical habitat for many bird species, but pollution and development continue to degrade these areas faster than protection efforts can offset. Reversing this decline remains an unresolved conservation priority.

climate-environment global-unspecified decline coastal bird habitat pollution yet fully prevent wetland populations whether philosophy-ethics way mathematics-logic have

WS01032 · Logged by The Internet (the_lurker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01032 Title: We can't yet fully prevent the decline of coastal wetland bird populations caused by habitat loss and pollution. URL: https://www.worldsolve.org/index.php?api=problem&id=1032

We haven't found a way to make renewable energy project siting fully avoid conflicts with sensitive wildlife habitats.

open Global / Unspecified, Global

Solar and wind farms are essential for clean energy but can sometimes be built in locations that disrupt sensitive wildlife habitats if siting isn't carefully planned. Balancing rapid renewable deployment with habitat protection remains an ongoing challenge.

climate-environment global-unspecified renewable-energy renewable energy siting sensitive wildlife habitats haven found way make mathematics-logic whether philosophy-ethics fully possible

WS01033 · Logged by The Internet (field_notes) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01033 Title: We haven't found a way to make renewable energy project siting fully avoid conflicts with sensitive wildlife habitats. URL: https://www.worldsolve.org/index.php?api=problem&id=1033

We don't have a scalable way to prevent the depletion of deep-sea ecosystems from emerging deep-sea mining operations.

open Global / Unspecified, Global

As demand grows for minerals used in batteries and electronics, deep-sea mining is expanding into ecosystems that remain poorly understood and could take centuries to recover from disruption. Regulating this before major damage occurs remains an unresolved governance and environmental challenge.

society-governance global-unspecified deep-sea ecosystems mining don have scalable way prevent depletion emerging philosophy-ethics whether determine agreed resolved

WS01034 · Logged by The Internet (gray_matter) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01034 Title: We don't have a scalable way to prevent the depletion of deep-sea ecosystems from emerging deep-sea mining operations. URL: https://www.worldsolve.org/index.php?api=problem&id=1034

We can't yet fully prevent the decline of native fish populations displaced by farmed fish escaping into wild waterways.

open Global / Unspecified, Global

Escaped farmed fish can compete with, interbreed with, or spread disease to native wild fish populations, threatening genetic diversity and long-term population health. Preventing these escapes and their ecological impact remains an unresolved aquaculture industry challenge.

mathematics-logic global-unspecified fish native populations farmed wild yet fully prevent decline displaced whether philosophy-ethics climate-environment have

WS01035 · Logged by The Internet (dev_null) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01035 Title: We can't yet fully prevent the decline of native fish populations displaced by farmed fish escaping into wild waterways. URL: https://www.worldsolve.org/index.php?api=problem&id=1035

We haven't solved how to make peatland restoration effective enough to stop the significant carbon emissions from degraded peat.

open Global / Unspecified, Global

Degraded peatlands release significant amounts of stored carbon, and restoring them to their natural, carbon-storing state requires careful, sustained management that many restoration projects don't achieve. Making this restoration reliably effective remains unresolved.

climate-environment global-unspecified carbon-emissions restoration effective significant carbon degraded haven solved make peatland enough philosophy-ethics whether way determine don

WS01036 · Logged by The Internet (wiki_reader) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01036 Title: We haven't solved how to make peatland restoration effective enough to stop the significant carbon emissions from degraded peat. URL: https://www.worldsolve.org/index.php?api=problem&id=1036

We don't have an effective way to prevent invasive fish species introduced for sport or food from decimating native aquatic biodiversity.

open Global / Unspecified, Global

Fish introduced into new waterways for recreational or food purposes can sometimes outcompete or prey on native species, causing lasting ecological disruption. Preventing or reversing this kind of introduction remains an unresolved conservation challenge.

mathematics-logic global-unspecified biodiversity fish species introduced food native don have effective way prevent philosophy-ethics determine whether agreed resolved

WS01037 · Logged by The Internet (gray_matter) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01037 Title: We don't have an effective way to prevent invasive fish species introduced for sport or food from decimating native aquatic biodiversity. URL: https://www.worldsolve.org/index.php?api=problem&id=1037

We can't yet fully prevent the loss of coastal dune ecosystems that naturally buffer storm surge damage.

open Global / Unspecified, Global

Coastal dunes provide a natural barrier against storm surges, but development and recreational use continue to erode them faster than they can naturally rebuild. Protecting these ecosystems remains an underappreciated but unresolved coastal resilience challenge.

climate-environment global-unspecified coastal ecosystems naturally storm yet fully prevent loss dune buffer whether philosophy-ethics mathematics-logic resolved haven

WS01038 · Logged by The Internet (wiki_reader) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01038 Title: We can't yet fully prevent the loss of coastal dune ecosystems that naturally buffer storm surge damage. URL: https://www.worldsolve.org/index.php?api=problem&id=1038

We haven't solved how to make green building materials as affordable and available as traditional carbon-intensive materials.

open Global / Unspecified, Global

Sustainable building materials often cost more or aren't as widely available as traditional concrete and steel, slowing their adoption across the construction industry. Making green materials the default rather than the premium choice remains unresolved.

climate-environment global-unspecified materials green building available traditional haven solved make affordable carbon-intensive whether philosophy-ethics mathematics-logic way determine

WS01039 · Logged by The Internet (dev_null) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01039 Title: We haven't solved how to make green building materials as affordable and available as traditional carbon-intensive materials. URL: https://www.worldsolve.org/index.php?api=problem&id=1039

We don't have a scalable way to prevent the decline of native pollinator species being outcompeted by managed honeybee populations.

open Global / Unspecified, Global

Managed honeybees, while important for agriculture, can sometimes outcompete native pollinator species for food resources when placed in sensitive natural areas. Balancing agricultural pollination needs with native species protection remains an unresolved ecological challenge.

mathematics-logic global-unspecified native species pollinator managed don have scalable way prevent decline philosophy-ethics determine whether agreed resolved

WS01040 · Logged by The Internet (seaglass) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01040 Title: We don't have a scalable way to prevent the decline of native pollinator species being outcompeted by managed honeybee populations. URL: https://www.worldsolve.org/index.php?api=problem&id=1040

We can't yet fully prevent the release of black carbon soot that accelerates glacier and ice sheet melting.

open Global / Unspecified, Global

Soot particles from fires and diesel engines can settle on snow and ice, absorbing more heat and accelerating melting beyond what temperature alone would cause. Reducing this pollution source at the scale needed to slow ice melt remains unresolved.

climate-environment global-unspecified ice soot melting yet fully prevent release black carbon accelerates whether mathematics-logic possible philosophy-ethics haven

WS01041 · Logged by The Internet (the_lurker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01041 Title: We can't yet fully prevent the release of black carbon soot that accelerates glacier and ice sheet melting. URL: https://www.worldsolve.org/index.php?api=problem&id=1041

We haven't found a way to make small-scale artisanal mining safer for both workers and surrounding ecosystems.

open Global / Unspecified, Global

Artisanal mining, often for gold, frequently uses toxic mercury and lacks basic safety protections, harming both workers' health and nearby water systems. Making this widespread informal industry safer at scale remains an unresolved global challenge.

climate-environment global-unspecified artisanal mining safer both workers haven found way make small-scale whether philosophy-ethics mathematics-logic resolved

WS01042 · Logged by The Internet (citizen_of_earth) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01042 Title: We haven't found a way to make small-scale artisanal mining safer for both workers and surrounding ecosystems. URL: https://www.worldsolve.org/index.php?api=problem&id=1042

We don't have an effective way to prevent the decline of native oyster populations that once naturally filtered coastal waters.

open Global / Unspecified, Global

Oyster populations, which naturally filter and clean coastal water, have declined sharply in many regions due to overharvesting and pollution. Restoring these populations to meaningfully improve water quality again remains an unresolved conservation challenge.

climate-environment global-unspecified populations have oyster naturally coastal don effective way prevent decline philosophy-ethics whether determine agreed resolved

WS01043 · Logged by The Internet (future_watch) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01043 Title: We don't have an effective way to prevent the decline of native oyster populations that once naturally filtered coastal waters. URL: https://www.worldsolve.org/index.php?api=problem&id=1043

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2165 public problems
2165 open challenges
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