World Solve

Air pollution contributes to respiratory and cardiovascular disease in millions of people living in polluted urban areas, and treatment only addresses symptoms, not exposure. Reducing the exposure itself remains the harder, unresolved half of the problem.

Some slow-growing cancers are unlikely to ever threaten a patient's life, yet current diagnostics often can't tell them apart from dangerous ones. This leads to both overtreatment and, at times, dangerous undertreatment.

Clothing production involves water use, chemical dyes, and labor spread across many countries, making its full environmental cost difficult to measure accurately. Without clear measurement, meaningful accountability remains difficult to enforce.

Fertilizer runoff from farms feeds harmful algae blooms in nearby lakes, damaging drinking water and local ecosystems. Preventing this at the source remains cheaper than treating it after the fact, but adoption is still limited.

Mining for the metals used in batteries and electronics often destroys forests, rivers, and habitats that took centuries to form. Balancing resource needs with ecosystem protection remains a persistent unresolved tension.

Microplastics have been found nearly everywhere scientists have looked, including soil and tap water, yet no affordable removal method exists at scale. This leaves an existing, growing contamination problem largely unaddressed.

Most food waste in large cities still ends up in landfills producing methane, despite composting being a relatively simple, well-understood solution. Scaling this to city-wide adoption remains logistically unresolved in most places.

International agreements to reduce deforestation often rely on inconsistent or delayed data, making enforcement difficult. Better real-time tracking could hold countries and companies accountable for logging commitments.

Rising seas and stronger storms are eroding coastlines faster than in the past, threatening homes and infrastructure built near the water. Affordable, effective protection methods remain limited outside of wealthy coastal areas.

Overgrazing and development have degraded vast grassland ecosystems worldwide, and restoration efforts remain small compared to the scale of the damage. A more scalable restoration method could recover important habitat and carbon storage.

Current wearables track surface-level signals like heart rate well, but measuring things like blood chemistry non-invasively remains far less reliable. Solving this could make preventive healthcare monitoring dramatically more accessible.

Digital voting could make elections more accessible, but concerns about tampering and verification have kept most systems limited to smaller-scale trials. A fully trusted, secure digital voting system remains unbuilt at national scale.

Data centers powering cloud services consume enormous amounts of electricity and water for cooling, and demand keeps climbing with AI adoption. A genuinely sustainable path for this growth remains unresolved.

Self-driving systems handle most driving scenarios well, but rare, unusual situations still trip them up in ways human drivers might handle intuitively. Closing this reliability gap remains essential before full autonomy becomes truly safe.

Assistive technology has improved, but truly seamless, affordable control of phones, computers, and home devices for people with paralysis remains out of reach for many. Progress here could dramatically improve daily independence.

Medical research benefits enormously from large shared datasets, but combining that with true patient privacy protection remains technically and legally unresolved. Better methods could unlock research without compromising individual privacy.

Voice assistants often misinterpret complex or ambiguous requests, especially involving sarcasm, local dialects, or multi-step instructions. Bridging this understanding gap remains a persistent limitation of current systems.

Manipulated or duplicated images occasionally slip through peer review, sometimes undermining trust in published research long after the fact. Better automated verification tools remain underdeveloped for scientific publishing.

Detecting a planet in a habitable zone is only a first step, and current tools can't yet confirm whether conditions there truly support advanced life. Refining this picture would sharpen the search for life beyond Earth.

A large enough solar storm could damage transformers and electronics across entire continents, and current models can't precisely predict which systems would fail. Better modeling could guide smarter infrastructure protection investment.