World Solve

Addressing widespread destruction of wildlife habitats 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 limited specialists, transport, laboratory capacity and broadband. Proposals should specify quantifiable biological, social or environmental outcomes, openly discuss potential risks, and present a realistic pathway for long-term maintenance and local ownership beyond short research pilots.

Addressing widespread diseases caused by contaminated water 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 limited specialists, transport, laboratory capacity and broadband. Proposals should specify quantifiable biological, social or environmental outcomes, openly discuss potential risks, and present a realistic pathway for long-term maintenance and local ownership beyond short research pilots.

Attackers can automatically test massive numbers of previously leaked username and password combinations across many websites to find accounts where the same credentials still work. Reducing the effectiveness of this widespread technique remains an unresolved security challenge.

When one website's user database is breached, attackers often successfully reuse those same stolen credentials on other unrelated websites where people reused the same password. Preventing this cascade of breaches remains an ongoing security challenge despite widespread password reuse warnings.

Existing assistive navigation tools for blind and visually impaired users remain limited in accuracy and are often too expensive for widespread daily use. A truly reliable, affordable solution remains an unmet accessibility need.

Techniques that let multiple parties jointly compute something without revealing their private data to each other exist, but they remain too slow and complex for widespread practical adoption. Making this both secure and fast enough remains an active research challenge.

Early brain-computer interfaces show promise for helping paralyzed patients control devices with thought alone, but long-term safety, reliability, and signal accuracy remain unresolved. Wider medical adoption depends on solving these fundamental issues first.

PISA results highlight widespread struggles in maths and science, with schools in poor areas lagging behind. Adaptive learning platforms and teacher-support tools can raise outcomes.

PISA results highlight widespread struggles in maths and science, with schools in poor areas lagging behind. Adaptive learning platforms and teacher-support tools can raise outcomes.

Large populations live in self-built housing without secure tenure or basic services. Slum-upgrading and legal-regularisation platforms can improve living conditions.

People may consume enough calories but lack essential vitamins and minerals. Fortification policies and affordable supplements can address this.

Smallholder farmers often rely on traditional knowledge rather than timely forecasts, exposing them to avoidable losses. SMS-based localized forecast services and climate advisory platforms could improve resilience.

Despite economic growth, poor maternal nutrition and inadequate diets leave nearly a third of children stunted in countries like India. Fortified food distribution and mobile nutrition-tracking for at-risk households could help.

Current desalination technology consumes large amounts of fossil-fuel energy, undermining sustainability goals. Solar-powered desalination research could make the process both cheaper and greener.

Overcrowded classrooms, underpaid teachers, and pandemic-era learning loss have left millions behind grade level. Structured foundational literacy programs paired with teacher coaching apps have shown strong results.

Social stigma and weak legal enforcement discourage survivors from seeking help or justice in many communities. Anonymous reporting apps linked directly to support services have improved reporting rates where deployed.

Testicular cancer is highly treatable when caught early, but a lack of widespread screening awareness means some cases are diagnosed later than they should be. Improving early detection and awareness remains an underaddressed public health gap.

Sleep apnea, when left untreated for years, is linked to cognitive decline and other health issues, yet many cases go undiagnosed simply because symptoms are mistaken for normal fatigue. Earlier, more widespread detection remains an unmet need.

Data breaches exposing millions of passwords happen with striking regularity, despite widespread awareness of the problem. A more fundamentally secure approach to authentication is still needed.

Artisanal mining, often for gold, frequently uses toxic mercury and lacks basic safety protections, harming both workers' health and nearby water systems. Making this widespread informal industry safer at scale remains an unresolved global challenge.