World Solve

Vast areas of farmland worldwide have been degraded by decades of intensive use, and restoring their fertility can take years even with the right techniques. Scaling this restoration affordably remains an unresolved agricultural challenge.

Vast stretches of ocean lie beyond any single nation's jurisdiction, making it difficult to monitor and stop illegal fishing that depletes fish populations faster than they can recover. Closing this enforcement gap remains an unresolved challenge.

Washing machines release countless tiny plastic fibers from synthetic fabrics into wastewater, and most filtration systems aren't designed to catch particles this small. This steady stream of microplastic pollution remains largely unaddressed at the source.

Crop residue and animal waste could theoretically be converted into biogas or other clean energy sources, but the infrastructure needed remains too costly for many farms to adopt. Scaling this technology affordably remains an unresolved opportunity.

Even legally protected forests are frequently logged illegally due to weak enforcement and high demand for timber, undermining conservation efforts on paper. Stopping this in practice, not just in law, remains an unresolved global challenge.

Ocean shipping produces a significant share of global greenhouse gas emissions, yet the industry has been slower than others to adopt cleaner fuel alternatives at scale. Speeding up this transition remains an unresolved climate challenge.

Mangroves protect coastlines from storms and support rich ecosystems, but they continue to be cleared for development faster than restoration efforts can replace them. Speeding up restoration while slowing clearance remains unresolved.

Underwater noise from ships can interfere with the way whales and other marine mammals communicate and navigate, and mitigation measures remain inconsistently enforced across major shipping routes. Reducing this impact remains an underaddressed conservation issue.

Overgrazing, deforestation, and changing rainfall patterns continue to push arid regions toward full desertification faster than restoration projects can reverse. Scaling effective land restoration to match the pace of degradation remains unresolved.

Tropical forests host a huge share of the world's biodiversity, and converting this land for farming, even when done for legitimate food needs, often results in permanent species loss. Balancing food production with biodiversity protection remains unresolved.

Construction and demolition debris makes up a significant share of total waste in many rapidly growing cities, and recycling this material at scale remains inconsistently practiced. Reducing this waste stream remains an unresolved urban sustainability issue.

Excess natural gas at oil extraction sites is often simply burned off rather than captured and used, wasting a valuable resource while releasing preventable emissions. Capturing this gas instead of flaring it remains inconsistently adopted across the industry.

Ships can unintentionally transport invasive species across oceans in the water they carry for stability, introducing them to ecosystems where they can cause serious ecological disruption. Fully preventing this transfer remains inconsistently enforced globally.

Poaching and illegal trade continue to threaten species like elephants, rhinos, and pangolins despite international protections, because enforcement remains inconsistent and demand persists. Closing this gap between law and enforcement remains an unresolved global conservation issue.

As farmland expands to meet growing food demand, it frequently cuts through pathways that wildlife species depend on for seasonal migration. Balancing agricultural needs with preserving these corridors remains an unresolved land-use challenge.

Sharks reproduce much more slowly than most fish, making their populations especially vulnerable to overfishing and slow to recover even after protective measures are introduced. Enforcing sustainable limits globally remains an unresolved challenge.

Excess nitrogen from agricultural fertilizer washes into rivers and eventually the ocean, fueling algae blooms that deplete oxygen and create dead zones where marine life can't survive. Reducing this runoff while maintaining crop yields remains an unresolved balancing act.

Invasive plants can spread aggressively in protected parks and reserves, outcompeting native species even where conservation efforts are actively underway. Effective, affordable control methods that don't damage the broader ecosystem remain incomplete.

Vultures help prevent disease spread by consuming carcasses quickly, but populations have declined sharply in various regions due to poisoning and habitat loss. Protecting this often-overlooked but ecologically important species remains an unresolved conservation issue.

River dolphins are highly sensitive to pollution and habitat disruption, and several populations have declined sharply as rivers become more polluted and fragmented by development. Reversing this decline remains an unresolved conservation priority.