World Solve

River deltas provide fertile land for millions of people but are increasingly eroding due to upstream dam construction and rising sea levels reducing natural sediment replenishment. Protecting these critical, densely populated areas remains an unresolved challenge.

Heavy metal contamination can persist in soil for decades, affecting both agricultural productivity and human health in nearby communities. Effective, affordable soil remediation at scale remains an unresolved environmental challenge.

Many cities' stormwater systems combine sewage and rainwater runoff, and heavy storms can cause this combined overflow to discharge untreated into nearby waterways. Fully separating and managing this runoff remains a costly, unresolved infrastructure challenge.

Freshwater mussels play an important role in filtering water and supporting aquatic ecosystems, but they're highly sensitive to pollution and warming, and many populations are declining as a result. Protecting this often overlooked species remains an unresolved conservation issue.

Conventional cotton farming uses significant water and pesticides, and while more sustainable methods exist, they remain a small share of overall global production. Scaling sustainable practices to become the industry norm remains unresolved.

Solar and wind farms are essential for clean energy but can sometimes be built in locations that disrupt sensitive wildlife habitats if siting isn't carefully planned. Balancing rapid renewable deployment with habitat protection remains an ongoing challenge.

Degraded peatlands release significant amounts of stored carbon, and restoring them to their natural, carbon-storing state requires careful, sustained management that many restoration projects don't achieve. Making this restoration reliably effective remains unresolved.

Sustainable building materials often cost more or aren't as widely available as traditional concrete and steel, slowing their adoption across the construction industry. Making green materials the default rather than the premium choice remains unresolved.

Soot particles from fires and diesel engines can settle on snow and ice, absorbing more heat and accelerating melting beyond what temperature alone would cause. Reducing this pollution source at the scale needed to slow ice melt remains unresolved.

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.

Fish populations often migrate across international boundaries, but management practices and quotas can vary significantly between neighboring countries sharing the same stock. Aligning these practices for shared, sustainable management remains unresolved.

A large share of organic waste still ends up in landfills producing methane simply because industrial composting infrastructure isn't available in enough regions. Building this capacity out at the scale needed remains an unresolved waste management challenge.

Forests act as natural carbon sinks, but increasingly severe wildfires are turning some forests from carbon absorbers into carbon emitters faster than they can regrow and recover. Reversing this shift remains an unresolved climate feedback challenge.

Many consumer electronics are built in ways that make repair difficult or uneconomical, encouraging early replacement and contributing significantly to electronic waste. Shifting the industry toward genuinely repairable design remains an unresolved manufacturing and policy challenge.

Fraudulent warranty claims, sometimes supported by AI-generated fake documentation or images, can cost manufacturers significant money if not caught before payout. Detecting this kind of fraud at scale remains an unresolved operational challenge.

AI-generated voice calls soliciting charitable donations can convincingly target elderly individuals who may be less familiar with distinguishing genuine from fraudulent solicitations. Detection and protective measures for this vulnerable group remain underdeveloped.

Entirely fabricated conference proceedings, complete with fake papers and attendee lists, could potentially be used to pad academic resumes without detection. Verifying the legitimacy of claimed academic activities remains an unresolved challenge.

Automated phone systems using AI can sometimes fail to correctly route urgent or unusual complaints, leaving customers stuck in unhelpful loops during time-sensitive situations. Improving reliability in these systems for edge cases remains an unresolved design challenge.

A small number of factories in a few countries currently produce the vast majority of the world's most advanced computer chips, creating serious supply chain risk if any single region faces disruption. Diversifying this manufacturing base remains a slow, capital-intensive challenge.

3D printing excels at prototyping and small-batch production but still can't match the speed, precision, and cost-efficiency of traditional mass manufacturing for complex electronics. Closing this gap could transform how and where products are made.