World Solve

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.

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.

Defenses against these attacks, which flood a target with traffic to knock it offline, can sometimes inadvertently slow down real users as well while filtering out malicious requests. A cleaner separation between attack and legitimate traffic remains technically difficult.

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.

Wireless charging remains noticeably slower and less energy-efficient than plugging in directly, limiting its adoption as a true primary charging method. Closing this performance gap remains an unresolved engineering challenge.

Criminal networks move money, goods, and people across borders quickly, while law enforcement cooperation between countries is often slow and limited. Closing this gap requires faster, more trusted international coordination.

Some people reach old age with sharp minds and healthy bodies, while others decline much earlier, and genetics only explains part of it. Understanding this gap could extend healthy years of life for far more people.

Methane is a far more potent greenhouse gas than carbon dioxide in the short term, and much of it leaks unnoticed from pipelines and wells. Better detection and faster repairs could meaningfully slow near-term warming.

Coral bleaching events are becoming more frequent as ocean temperatures rise, and restoration efforts are still small and slow. Without faster recovery methods, many reef ecosystems may not survive this century.

Direct air capture exists, but it's still far too expensive and energy-intensive to make a dent in global emissions. Making it cheap enough to scale is one of the biggest levers left for slowing climate change.

Despite decades of research, battery capacity has improved far more slowly than the power demands of our devices. A real breakthrough here would change how we use and design nearly all portable technology.

Gravity should be pulling everything together over time, yet distant galaxies are accelerating away from each other. This mystery, blamed on dark energy, remains one of the biggest open questions in physics.

Farmers in India apply fertilizer without knowing their soil's actual nutrient profile because lab testing is too slow and expensive, resulting in both wasted input costs and degraded soil over time.

Develop methods to quantify livelihoods, health, culture, land, and social losses caused by drought, salinization, erosion, and chronic heat.

Governments and households in disaster-prone regions of India lack pre-arranged financing mechanisms, forcing reliance on slow post-disaster aid appeals rather than rapid, budgeted recovery funds.

Existing crop insurance schemes in Pakistan are financially unworkable for smallholder farmers due to high premiums, slow claims verification, and payout structures poorly matched to localized weather risk.