A living repository of problems worth solving.
World Solve is an institutional, citable repository of unsolved and solved problems across science, technology, economics, governance, and philosophy. We give independent researchers and entrepreneurs precise targets to work on next.
1. Explore & Filter
Search and filter across continents, categories, and tags to find precise problems matching your expertise.
2. Claim & Work
Mark problems you are actively working on, collaborate with peers, and build verified solutions.
3. Citable Records
Every problem gets a unique permanent citation ID (e.g. WS00042) for research papers and proposals.
4194Total
4194Open
0Solved
9Humans
Open
South America / Brazil
WS05023
Cities will contain wider differences in age, culture, disability, work schedules, and climate exposure. The challenge is making public spaces safe and useful without imposing one dominant pattern of behavior. The solution must work with li...
Team Humans Club. (2026). Public-space design for increasingly diverse urban populations for low-income communities. World Solve Repository, WS05023. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5023
Open
Global / Global
WS06004
The problem of pastures disappearing 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 con...
Team Humans Club. (2026). Building effective interventions for pastures disappearing by 2030. World Solve Repository, WS06004. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=6004
Open
Global / Global
WS06003
Addressing farmland turning into desert is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings with li...
Team Humans Club. (2026). Implementing proven strategies against farmland turning into desert by 2030. World Solve Repository, WS06003. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=6003
Open
Global / Global
WS06002
freshwater becoming salty remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demonst...
Team Humans Club. (2026). Implementing proven strategies against freshwater becoming salty by 2030. World Solve Repository, WS06002. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=6002
Open
Global / Global
WS06001
island nations facing disappearance remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest a...
Team Humans Club. (2026). Scaling successful models to end island nations facing disappearance by 2030. World Solve Repository, WS06001. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=6001
Open
Global / Global
WS06000
coastal cities threatened by rising seas remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarc...
Team Humans Club. (2026). Creating practical approaches to eliminate coastal cities threatened by rising seas by 2030. World Solve Repository, WS06000. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=6000
Open
Global / Global
WS05999
continued construction on flood plains remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarces...
Team Humans Club. (2026). Creating practical approaches to eliminate continued construction on flood plains by 2030. World Solve Repository, WS05999. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5999
Open
Global / Global
WS05998
buildings constructed on unsafe soft soil remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scar...
Team Humans Club. (2026). Scaling successful models to end buildings constructed on unsafe soft soil by 2030. World Solve Repository, WS05998. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5998
Open
Global / Global
WS05997
houses collapsing in earthquakes remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and ...
Team Humans Club. (2026). Implementing proven strategies against houses collapsing in earthquakes by 2030. World Solve Repository, WS05997. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5997
Open
Global / Global
WS05996
Addressing building codes being ignored is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings with li...
Team Humans Club. (2026). Building effective interventions for building codes being ignored by 2030. World Solve Repository, WS05996. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5996
Open
Asia / India
WS05014
Climate change and urban pumping changes may cause groundwater to enter basements, transit systems, utilities, and foundations. Cities need mapping, waterproofing, drainage, and financing strategies that address slow cumulative damage. The ...
Team Humans Club. (2026). Adapting underground infrastructure to rising groundwater under geopolitical fragmentation. World Solve Repository, WS05014. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5014
Open
Global / Global
WS05995
The problem of insurance failing to cover the poor after disasters continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced a...
Team Humans Club. (2026). Building effective interventions for insurance failing to cover the poor after disasters by 2030. World Solve Repository, WS05995. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5995
Open
Global / Global
WS05994
reconstruction money being stolen remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and...
Team Humans Club. (2026). Strengthening global capacity to solve reconstruction money being stolen by 2030. World Solve Repository, WS05994. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5994
Open
Global / Global
WS05993
The problem of help arriving too slowly after disasters continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly a...
Team Humans Club. (2026). Developing scalable systems to address help arriving too slowly after disasters by 2030. World Solve Repository, WS05993. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5993
Open
Global / Global
WS05992
Future progress on human development and planetary health depends on solving insufficient emergency shelters. Conventional approaches have proven insufficient. The required intervention must integrate community knowledge, data and appropria...
Team Humans Club. (2026). Developing scalable systems to address insufficient emergency shelters by 2030. World Solve Repository, WS05992. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5992
Open
Global / Global
WS05991
evacuation plans that fail remains one of the most urgent challenges of our time. Systems currently in place are inadequate for the scale and complexity of the problem. A successful approach must work where resources are scarcest and demons...
Team Humans Club. (2026). Building effective interventions for evacuation plans that fail by 2030. World Solve Repository, WS05991. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5991
Open
Global / Global
WS05990
The problem of early warning systems that are missing continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poorly ada...
Team Humans Club. (2026). Building effective interventions for early warning systems that are missing by 2030. World Solve Repository, WS05990. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5990
Open
Global / Global
WS05989
The problem of natural disasters hitting with greater force continues to affect hundreds of millions of people and undermines progress on multiple Sustainable Development Goals. Existing responses remain fragmented, under-resourced and poor...
Team Humans Club. (2026). Establishing robust mechanisms to tackle natural disasters hitting with greater force by 2030. World Solve Repository, WS05989. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5989
Open
Global / Global
WS05988
Future progress on human development and planetary health depends on solving inadequate systems for detecting dangerous asteroids. Conventional approaches have proven insufficient. The required intervention must integrate community knowledg...
Team Humans Club. (2026). Creating practical approaches to eliminate inadequate systems for detecting dangerous asteroids by 2030. World Solve Repository, WS05988. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5988
Open
Global / Global
WS05987
Addressing weak rules governing outer space is critical for achieving the 2030 Agenda. Current efforts fall short in scale, speed and equity, leaving the most vulnerable behind. Any viable solution must function in low-resource settings wit...
Team Humans Club. (2026). Developing scalable systems to address weak rules governing outer space by 2030. World Solve Repository, WS05987. Retrieved from https://www.worldsolve.org/index.php?view=problem&id=5987
