World Solve

Drained peat soils ignite during dry El Niño years, creating subterranean fires that burn for months, releasing enormous carbon emissions and toxic transboundary haze.

Extensive glass and concrete urban architecture in Gulf cities amplifies localized heat, driving unsustainable peak air conditioning power demand.

Drying lakebeds like the Aral Sea release toxic salt and pesticide dust that spreads across borders, ruining farmland without joint regional land restoration.

A vast majority of ocean plastic originates from major river systems; current cleanup solutions lack capacity to filter heavy river flows during monsoons.

Headwater forests that regulate regional river flows are cleared for gold and nickel mining, disturbing regional hydrological balances.

Landslides regularly cut off remote mountain roads, blocking ground vehicles from delivering critical blood units to rural hospitals.

As young generations move to cities, historic mountain farming terraces are abandoned, leading to unchecked soil erosion and landslides.

Small towns burn household plastic and trash daily, generating toxic dioxin emissions that contaminate nearby air and local farmland.

Complex, legacy land ownership patterns in urban centers make land assembly prohibitively expensive for municipal social housing development.

Groundwater extraction in surrounding agricultural zones causes subtle soil sinkage beneath critical transit corridors, requiring constant costly re-leveling.

Seasonal mountain landslides routinely break main water pipelines, cutting off municipal drinking water to mountain towns for weeks.

Even where indigenous communities have lived on land for centuries, national laws sometimes fail to formally recognize their ownership or governance rights over it. This leaves them vulnerable to displacement by governments or corporations.

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.

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.

Remittances sent to Indonesia from diaspora communities abroad are subject to high transfer fees, reducing the effective value delivered to recipient households who depend on this income.

Indigenous land rights are frequently overridden by governments or corporations pursuing resource extraction or development. Meaningful, enforceable control over ancestral land remains unresolved in many countries.

Poor farming practices and deforestation are wearing away fertile topsoil faster than nature can rebuild it, threatening long-term food production. A scalable solution to reverse this trend remains unresolved globally.

Wetlands filter water and protect against flooding, but restoring one once it's been drained or built over is far harder than protecting it in the first place. Better restoration techniques remain limited and expensive.

Some island nations face the real possibility of becoming uninhabitable within decades due to sea level rise. Cheap, effective coastal protection or relocation planning remains urgently unsolved for these communities.

Reusable rockets have cut costs, but they still require significant repair and inspection after each landing. True rapid reusability, like an airplane, would make space travel dramatically cheaper.