World Solve

last-mile delivery remaining hard 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 demonstrate clear, measurable results. It should identify possible harms, respect local agency, and show how the solution can be maintained and expanded by the communities it is meant to serve.

Sparse populations and poor roads make rural delivery expensive, limiting e-commerce expansion beyond cities. Shared rural delivery hubs and route-optimization software could reduce costs.

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.

These moons host liquid water oceans under miles of ice, warmed by tidal forces, but we lack robotic tools capable of melting through kilometers of crust to sample liquid water without introducing Earth contamination.

Unsustainable grazing and land degradation in the Gobi and Taklamakan deserts trigger toxic dust storms that sweep thousands of miles, destroying topsoil, damaging infrastructure, and worsening air quality across Northeast Asia.

High student debt loads are pushing back decisions like buying a home or starting a family for many young adults. Rebalancing the cost of education against its long-term benefits remains a persistent economic problem.

Cosmic radiation gradually damages electronics, and there's no way to send a repair technician to fix something millions of miles away. More radiation-hardy systems are essential for missions lasting a decade or more.

Develop offline-capable, multilingual, trusted systems for issuing alerts, gathering local conditions, and coordinating response when normal communications fail. The challenge is especially acute in informal settlements, where existing solutions often assume stable institutions, high incomes, continuous connectivity, or centralized service delivery.

Develop practical alternatives to diesel for small trucks, boats, and last-mile vehicles serving dispersed rural communities.

Develop systems that reduce diversion, duplication, spoilage, and exclusion while protecting the privacy and safety of aid recipients.

Rural clinics in Kenya lose a significant share of temperature-sensitive vaccines to cold-chain breaks between district depots and final delivery points, driven by unreliable electricity, sparse refrigerated transport, and thin logistics staffing.

Last-mile freight delivery in Egypt's congested cities remains dominated by diesel vehicles, and electric alternatives face high upfront costs and inadequate charging infrastructure.