World Solve

Cities are growing faster than governments can build roads, utilities, and housing, leading to chronic service shortfalls. Incremental, modular urban planning approaches could help cities adapt more affordably.

Rapid construction is consuming parks and open land, reducing residents' access to recreation and worsening urban heat. Green-corridor urban planning policies could preserve livability as cities expand.

Treated wastewater is rarely reused for non-potable purposes despite growing water stress in many urban areas. Decentralized greywater recycling systems for buildings could meaningfully cut freshwater demand.

Many rural communities have no way to verify if their drinking water is safe, leading to preventable illness. Low-cost portable water-testing kits distributed through community health workers could close this gap.

War, accidents, and disease leave many without access to mobility devices that could restore independence and employment potential. 3D-printed prosthetics ventures could lower costs dramatically.

As mobile money adoption accelerates, many new users lack understanding of digital fraud risks and responsible borrowing. Simple, localized financial-literacy content delivered via mobile apps could reduce financial harm.

Many SMEs adopt digital payment and e-commerce tools without understanding basic security practices, exposing them to fraud. Simple, affordable cybersecurity training programs tailored for small businesses could reduce losses.

Many households still burn solid fuels indoors for cooking and heating, causing significant respiratory illness, especially among women and children. Clean cookstove distribution programs need continued scaling and subsidy support.

Resistance to insecticides and antimalarial drugs is rising, and many rural clinics lack rapid diagnostic tools. Better low-cost diagnostics, vaccines with longer efficacy, and resistance-tracking data platforms are urgently needed.

Fewer than 1.4 psychiatrists exist per 100,000 people in many countries, leaving depression and trauma largely untreated. Telepsychiatry platforms and trained lay counselors could extend coverage cheaply.

Unreliable electricity spoils vaccines before they reach children, contributing to preventable disease outbreaks. Solar-powered refrigeration units and route-optimized delivery apps could fix last-mile gaps.

Medical brain drain to Europe and the Gulf worsens staff shortages, especially in rural clinics. Task-shifting to trained community health workers and telemedicine could partially offset shortages.

Many rural African hospitals cannot afford or stock effective antivenom, and misdiagnosis is common. Regional antivenom manufacturing hubs and diagnostic training could save lives.

Many farmers, especially women, lack formal land titles, making it risky to invest in irrigation or trees. Digital land registries using satellite mapping could formalize ownership quickly and cheaply.

Subsidies often benefit wealthier car owners more than the poor while straining government finances. Data-driven targeted subsidy reform could redirect funds to renewable infrastructure.

Aging pipe networks and poor maintenance waste water that cities desperately need. Leak-detection sensor startups and IoT-based monitoring could recover significant volumes.

Many African students finish primary school without basic literacy or numeracy due to overcrowded classrooms and undertrained teachers. Structured pedagogy programs paired with teacher-coaching apps show strong results.

Many graduates lack skills employers want, while industries report shortages in trades like welding and electrical work. Employer-linked apprenticeship platforms could bridge this skills gap.

Menstrual hygiene management gaps and long, unsafe commutes push girls out of the education system permanently. Affordable reusable sanitary pad manufacturing and school-proximity boarding models can help retention.

Traditional banks avoid low-income and rural customers due to high servicing costs, leaving many without savings or credit access. Mobile money platforms have proven the model, but rural agent networks still need expansion.