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 can't yet fully prevent the spread of harmful algal blooms fueled by warming waters and nutrient runoff.

open Global / Unspecified, Global

Algal blooms can produce toxins that harm both wildlife and humans, and they're becoming more frequent as waters warm and nutrient pollution continues from agricultural runoff. Preventing these blooms before they form remains an unresolved challenge.

climate-environment global-unspecified blooms algal waters nutrient runoff yet fully prevent spread harmful pollution whether philosophy-ethics water way

WS00984 · Logged by The Internet (the_lurker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00984 Title: We can't yet fully prevent the spread of harmful algal blooms fueled by warming waters and nutrient runoff. URL: https://www.worldsolve.org/index.php?api=problem&id=984

We haven't found a way to make urban tree canopy coverage grow fast enough to offset rising city temperatures.

open Global / Unspecified, Global

Trees can significantly cool city temperatures, but planting and maintaining enough urban canopy to meaningfully offset rising heat requires long-term investment many cities haven't sustained. Closing this gap remains an urgent urban planning challenge.

philosophy-ethics global-unspecified urban-planning urban haven canopy enough offset rising city temperatures found way whether make cities climate-environment mathematics-logic

WS00985 · Logged by The Internet (null_pointer) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00985 Title: We haven't found a way to make urban tree canopy coverage grow fast enough to offset rising city temperatures. URL: https://www.worldsolve.org/index.php?api=problem&id=985

We don't have a scalable way to prevent illegal mining operations from polluting rivers in remote forest regions.

open Global / Unspecified, Global

Unregulated mining, often for gold or other minerals, can introduce toxic chemicals like mercury into remote river systems, harming both ecosystems and downstream communities. Enforcement in these hard-to-reach areas remains inconsistent.

climate-environment global-unspecified mining remote don have scalable way prevent illegal operations polluting philosophy-ethics whether determine agreed resolved

WS00986 · Logged by The Internet (future_watch) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00986 Title: We don't have a scalable way to prevent illegal mining operations from polluting rivers in remote forest regions. URL: https://www.worldsolve.org/index.php?api=problem&id=986

We can't yet fully prevent the decline of insect populations that are essential to global food production.

open Global / Unspecified, Global

Insect populations, including many pollinators, have been declining in various regions due to habitat loss, pesticide use, and climate change, threatening the broader ecosystems and agriculture that depend on them. Reversing this decline at scale remains unresolved.

climate-environment global-unspecified climate-change decline insect populations yet fully prevent essential food production whether philosophy-ethics way determine don have

WS00987 · Logged by The Internet (dev_null) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00987 Title: We can't yet fully prevent the decline of insect populations that are essential to global food production. URL: https://www.worldsolve.org/index.php?api=problem&id=987

We haven't solved how to protect glaciers that serve as primary water sources for millions of people downstream.

open Global / Unspecified, Global

Many major rivers depend on glacial melt for a steady water supply, and as these glaciers shrink, the long-term water security of downstream populations becomes increasingly uncertain. Protecting or planning around this shrinking resource remains unresolved.

climate-environment global-unspecified water glaciers downstream haven solved protect serve primary sources millions whether urban long philosophy-ethics determine mathematics-logic

WS00988 · Logged by The Internet (open_thinker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00988 Title: We haven't solved how to protect glaciers that serve as primary water sources for millions of people downstream. URL: https://www.worldsolve.org/index.php?api=problem&id=988

We don't have an effective, affordable way to prevent desertification from spreading in already arid regions.

open Global / Unspecified, Global

Overgrazing, deforestation, and changing rainfall patterns continue to push arid regions toward full desertification faster than restoration projects can reverse. Scaling effective land restoration to match the pace of degradation remains unresolved.

climate-environment global-unspecified deforestation effective desertification arid regions don have affordable way prevent spreading philosophy-ethics whether determine agreed resolved

WS00989 · Logged by The Internet (citizen_of_earth) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00989 Title: We don't have an effective, affordable way to prevent desertification from spreading in already arid regions. URL: https://www.worldsolve.org/index.php?api=problem&id=989

We can't yet fully prevent the contamination of drinking water sources by industrial chemical runoff.

open Global / Unspecified, Global

Industrial chemicals can seep into groundwater and rivers used for drinking water, and cleanup once contamination occurs is often extremely difficult and expensive. Preventing contamination before it happens remains far more effective than remediation after the fact.

climate-environment global-unspecified contamination drinking water industrial yet fully prevent sources chemical runoff whether philosophy-ethics pollution

WS00990 · Logged by The Internet (seaglass) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00990 Title: We can't yet fully prevent the contamination of drinking water sources by industrial chemical runoff. URL: https://www.worldsolve.org/index.php?api=problem&id=990

We haven't found a way to make renewable energy infrastructure fully recyclable at the end of its operational life.

open Global / Unspecified, Global

Wind turbine blades and other renewable energy components can be difficult and costly to recycle, creating a growing waste stream from an industry meant to be environmentally beneficial. Closing this lifecycle gap remains an unresolved sustainability challenge.

climate-environment global-unspecified renewable-energy renewable energy haven found way make infrastructure fully recyclable end whether mathematics-logic philosophy-ethics possible

WS00991 · Logged by The Internet (open_thinker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00991 Title: We haven't found a way to make renewable energy infrastructure fully recyclable at the end of its operational life. URL: https://www.worldsolve.org/index.php?api=problem&id=991

We don't have a scalable way to prevent the loss of biodiversity in tropical forests being converted for agriculture.

open Global / Unspecified, Global

Tropical forests host a huge share of the world's biodiversity, and converting this land for farming, even when done for legitimate food needs, often results in permanent species loss. Balancing food production with biodiversity protection remains unresolved.

climate-environment global-unspecified biodiversity loss tropical forests don have scalable way prevent being philosophy-ethics determine whether agreed resolved

WS00992 · Logged by The Internet (curious_mind93) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00992 Title: We don't have a scalable way to prevent the loss of biodiversity in tropical forests being converted for agriculture. URL: https://www.worldsolve.org/index.php?api=problem&id=992

We can't yet fully prevent the runoff of road salt and de-icing chemicals from harming freshwater ecosystems in colder regions.

open Global / Unspecified, Global

Salt and chemicals used to keep roads safe in winter can wash into nearby streams and lakes, harming aquatic life over time. Finding equally effective but less harmful alternatives remains an underaddressed environmental challenge.

climate-environment global-unspecified salt chemicals harming yet fully prevent runoff road de-icing freshwater whether mathematics-logic philosophy-ethics haven possible

WS00993 · Logged by The Internet (curious_mind93) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00993 Title: We can't yet fully prevent the runoff of road salt and de-icing chemicals from harming freshwater ecosystems in colder regions. URL: https://www.worldsolve.org/index.php?api=problem&id=993

We haven't solved how to make sustainable seafood certification consistent and trustworthy across different countries.

open Global / Unspecified, Global

Various seafood sustainability labels exist, but standards and enforcement vary enough between certifying bodies that consumers can't always trust what a label truly guarantees. Creating a single, reliable global standard remains unresolved.

climate-environment global-unspecified seafood haven solved make sustainable certification consistent trustworthy different countries whether philosophy-ethics mathematics-logic resolved possible

WS00994 · Logged by The Internet (late_night_reader) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00994 Title: We haven't solved how to make sustainable seafood certification consistent and trustworthy across different countries. URL: https://www.worldsolve.org/index.php?api=problem&id=994

We don't have an effective way to prevent construction and demolition waste from overwhelming landfill capacity in growing cities.

open Global / Unspecified, Global

Construction and demolition debris makes up a significant share of total waste in many rapidly growing cities, and recycling this material at scale remains inconsistently practiced. Reducing this waste stream remains an unresolved urban sustainability issue.

climate-environment global-unspecified waste construction demolition growing cities don have effective way prevent philosophy-ethics whether determine agreed resolved

WS00995 · Logged by The Internet (the_lurker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00995 Title: We don't have an effective way to prevent construction and demolition waste from overwhelming landfill capacity in growing cities. URL: https://www.worldsolve.org/index.php?api=problem&id=995

We can't yet fully prevent the decline of amphibian populations linked to disease and habitat loss worldwide.

open Global / Unspecified, Global

A fungal disease combined with habitat destruction has driven sharp declines in amphibian populations across many regions, and effective large-scale intervention remains limited. Protecting these ecologically important species remains an unresolved conservation priority.

mathematics-logic global-unspecified amphibian populations disease habitat yet fully prevent decline linked loss whether philosophy-ethics health-biology way have

WS00996 · Logged by The Internet (wiki_reader) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00996 Title: We can't yet fully prevent the decline of amphibian populations linked to disease and habitat loss worldwide. URL: https://www.worldsolve.org/index.php?api=problem&id=996

We haven't found a way to make carbon offset programs consistently verifiable and free from double-counting.

open Global / Unspecified, Global

Some carbon offset programs have been found to overstate their actual climate benefit or allow the same emissions reduction to be claimed by multiple parties. Building a fully transparent, verifiable offset system remains an unresolved challenge.

climate-environment global-unspecified offset found carbon programs verifiable haven way make consistently free whether philosophy-ethics mathematics-logic resolved determine possible

WS00997 · Logged by The Internet (echo_chamber_no) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00997 Title: We haven't found a way to make carbon offset programs consistently verifiable and free from double-counting. URL: https://www.worldsolve.org/index.php?api=problem&id=997

We don't have a scalable way to prevent oil and gas flaring from wasting energy and releasing unnecessary emissions.

open Global / Unspecified, Global

Excess natural gas at oil extraction sites is often simply burned off rather than captured and used, wasting a valuable resource while releasing preventable emissions. Capturing this gas instead of flaring it remains inconsistently adopted across the industry.

climate-environment global-unspecified gas oil flaring wasting releasing emissions don have scalable way philosophy-ethics determine whether agreed resolved prevent

WS00998 · Logged by The Internet (field_notes) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00998 Title: We don't have a scalable way to prevent oil and gas flaring from wasting energy and releasing unnecessary emissions. URL: https://www.worldsolve.org/index.php?api=problem&id=998

We can't yet fully prevent the erosion of beaches and shorelines caused by a combination of rising seas and human development.

open Global / Unspecified, Global

Coastal development can interfere with natural sand replenishment processes, compounding the erosion already caused by rising sea levels. Balancing coastal development with long-term shoreline stability remains an unresolved planning challenge.

climate-environment global-unspecified development erosion caused rising yet fully prevent beaches shorelines combination whether philosophy-ethics way coastal mathematics-logic

WS00999 · Logged by The Internet (open_thinker) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS00999 Title: We can't yet fully prevent the erosion of beaches and shorelines caused by a combination of rising seas and human development. URL: https://www.worldsolve.org/index.php?api=problem&id=999

We haven't solved how to make textile dyeing and manufacturing processes free of harmful water pollution.

open Global / Unspecified, Global

Textile factories, especially in regions with weaker environmental regulation, often release dye chemicals directly into rivers, causing serious water pollution. Making this process clean and affordable at industrial scale remains an unresolved challenge.

climate-environment global-unspecified textile water pollution haven solved make dyeing manufacturing processes free whether affordable philosophy-ethics mathematics-logic

WS01000 · Logged by The Internet (seaglass) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01000 Title: We haven't solved how to make textile dyeing and manufacturing processes free of harmful water pollution. URL: https://www.worldsolve.org/index.php?api=problem&id=1000

We don't have an effective way to prevent the spread of invasive aquatic species through ballast water in cargo ships.

open Global / Unspecified, Global

Ships can unintentionally transport invasive species across oceans in the water they carry for stability, introducing them to ecosystems where they can cause serious ecological disruption. Fully preventing this transfer remains inconsistently enforced globally.

mathematics-logic global-unspecified invasive species water ships don have effective way prevent spread philosophy-ethics whether determine agreed resolved

WS01001 · Logged by The Internet (citizen_of_earth) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01001 Title: We don't have an effective way to prevent the spread of invasive aquatic species through ballast water in cargo ships. URL: https://www.worldsolve.org/index.php?api=problem&id=1001

We can't yet fully prevent the depletion of old-growth forests that take centuries to regrow once cut down.

open Global / Unspecified, Global

Old-growth forests support unique biodiversity that can't simply be replaced by planting new trees, since the ecological complexity takes centuries to develop. Protecting the last remaining old-growth forests remains an urgent, unresolved conservation priority.

climate-environment global-unspecified biodiversity old-growth forests centuries yet fully prevent depletion take regrow once whether philosophy-ethics way loss mathematics-logic

WS01002 · Logged by The Internet (field_notes) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01002 Title: We can't yet fully prevent the depletion of old-growth forests that take centuries to regrow once cut down. URL: https://www.worldsolve.org/index.php?api=problem&id=1002

We haven't found a way to prevent the collapse of bee colonies caused by a combination of pesticides, disease, and habitat loss.

open Global / Unspecified, Global

Colony collapse disorder continues to threaten commercial and wild bee populations that are essential for pollinating much of the global food supply. A comprehensive solution addressing all contributing factors at once remains unresolved.

health-biology global-unspecified collapse bee haven found way prevent colonies caused combination pesticides whether philosophy-ethics mathematics-logic determine climate-environment

WS01003 · Logged by The Internet (longform_fan) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01003 Title: We haven't found a way to prevent the collapse of bee colonies caused by a combination of pesticides, disease, and habitat loss. URL: https://www.worldsolve.org/index.php?api=problem&id=1003

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2165 public problems
2165 open challenges
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