World Solve

Aging farming populations struggle to find workers during planting and harvest seasons, especially in East Asia. Affordable small-scale farm automation and shared-equipment rental platforms could offset labor gaps.

Open defecation persists in some regions despite large public sanitation campaigns, contributing to disease spread. Low-cost decentralized toilet and sludge-treatment systems could close remaining gaps.

Remote and mountainous areas remain costly to connect to national grids, leaving villages without reliable power. Off-grid solar mini-grids tailored to difficult terrain could close this gap faster.

Girls in some regions face early dropout due to safety concerns, marriage pressure, or lack of female teachers. Girls-only transport programs and female-teacher recruitment incentives can improve retention.

Cultural norms and lack of documentation keep many women and rural residents outside the formal banking system. Mobile-money platforms designed with simplified KYC for underserved groups have proven effective elsewhere.

Villages in the Himalayas, Central Asia, and parts of Southeast Asia remain cut off for parts of the year due to weather and terrain. All-weather road construction techniques suited to difficult terrain are needed.

Mountainous terrain and low population density make fiber rollout economically unviable in many areas. Satellite internet and community mesh networks offer a faster path to connectivity.

Ongoing tensions over areas like the South China Sea, Kashmir, and various Central Asian borders create persistent instability risks. Multilateral dispute-resolution frameworks and confidence-building data-sharing mechanisms could reduce tensions.

Women in many Asian countries earn less and participate in the formal workforce far less than men, despite comparable education levels. Flexible work policies and affordable childcare infrastructure could improve participation rates.

Rapid slum growth in wealthy cities means even booming economies have significant underserved populations lacking basic services. Incremental slum-upgrading programs targeting basic services first have proven effective.

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.

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.

Laying fiber to remote areas is costly, so many villages rely on expensive, slow mobile data instead. Community network cooperatives and satellite backhaul could bridge the rural-urban digital divide.

Many patients with chronic conditions end up back in the hospital shortly after being discharged, often due to gaps in follow-up care rather than a failure of the original treatment. Better post-discharge support remains an unresolved healthcare system issue.

The UN handles war and peace, the WTO handles trade, and the WHO handles pandemics, but none of them were built with today's cross-cutting crises in mind. This leaves gaps where no institution has a clear mandate at all.

Rules protecting children online vary significantly by country and platform, leaving major gaps that put young users at risk. A more consistent global standard remains politically and technically difficult to establish.

Human trafficking networks exploit gaps between countries' laws and enforcement capacity, moving victims across borders largely undetected. A stronger, coordinated international strategy remains incomplete.

Certain simple-sounding tiling and packing puzzles remain surprisingly resistant to a complete general solution. These problems test the limits of combinatorics and geometric reasoning.

Some tiling patterns work perfectly in abstract mathematical space but haven't been proven physically constructible under all real-world constraints. This connects pure geometry with material and structural engineering.

Certification programs for sustainable palm oil exist, but enforcement gaps still allow rainforest clearing to continue for new plantations in various producing regions. Making sustainability certification genuinely effective at preventing this remains unresolved.