World Solve

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.

Some carbon offset programs have been found to overstate their actual climate benefit or allow the same emissions reduction to be claimed by multiple parties. Building a fully transparent, verifiable offset system remains an unresolved challenge.

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.

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.

Seagrass meadows are highly effective at storing carbon and supporting marine life, but they continue to decline due to pollution, dredging, and coastal development. Restoring them at a pace that matches their loss 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.

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.

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.

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.

Draining and clearing carbon-rich peat swamp forests for agriculture releases enormous amounts of stored carbon while also destroying unique ecosystems. Preventing this specific type of high-impact land conversion remains an unresolved policy and enforcement 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.

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.

Entirely AI-generated academic theses can be difficult for reviewers to distinguish from genuine student work without specialized detection tools, and these tools remain imperfect. Protecting the integrity of academic credentials remains an ongoing unresolved challenge.

Developers still occasionally and accidentally commit sensitive credentials directly into shared code repositories, creating avoidable security exposure. More robust default protections against this common mistake remain inconsistently adopted.

Laying physical fiber cable across mountains, deserts, or widely scattered rural populations is often prohibitively expensive relative to the number of people served. Finding cost-effective alternatives for these hard-to-reach areas remains unresolved.

Aircraft safety relies heavily on scheduled inspections rather than continuous, real-time structural monitoring, since affordable sensors capable of this level of detail remain limited. Expanding this kind of predictive monitoring remains an unresolved aviation challenge.

Computer memory still requires a tradeoff between speed, which loses data when powered off, and permanent storage, which is comparatively slower. A technology that fully combines both properties remains a long-sought but unresolved goal in computer engineering.

Physical hardware used in sensitive systems can sometimes be tampered with before installation, and detecting this tampering reliably and affordably remains technically challenging. Closing this hardware security gap remains an unresolved priority.

Fabricated certificates claiming completion of online courses that were never actually finished can undermine trust in credentialing from these platforms. Strengthening verification processes remains an unresolved challenge for online education providers.

Current noise cancellation works well for constant background noise but still struggles with sudden, sharp sounds, sometimes even letting through more noise briefly during the adjustment. A truly adaptive system remains technically unresolved.