World Solve

Despite recognition of its importance, reliable methods for safe and effective methods for large-scale insect protein production and use are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.

Food retail in United States remains heavily dependent on single-use plastic packaging, and affordable, scalable biodegradable alternatives have not reached price parity for small vendors.

Achieving methods for restoring the carbon sequestration capacity of terrestrial and coastal ecosystems at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.

Despite recognition of its importance, reliable methods for biotechnologies converting methane and CO2 into high-value chemicals and proteins are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.

Most households in Peru still cook with biomass fuels, driving deforestation and indoor air pollution, while clean cookstove adoption remains low due to upfront cost and unfamiliar cooking behavior.

Electronic waste volumes in Colombia are rising rapidly, but formal recycling capacity remains minimal, pushing most e-waste into informal, hazardous dismantling operations.

Despite recognition of its importance, reliable methods for pathways for achieving universal access to safe and affordable drinking water and sanitation are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.

The absence of robust, context-adapted solutions for real-time systems for predicting and mitigating the cascading impacts of climate extremes creates cascading risks across interconnected human and natural systems. Key missing elements include durable performance, low lifetime cost, and governance arrangements capable of sustaining impact beyond pilot stages.

Current approaches to biotechnologies for engineering plants that sequester more carbon in durable soil organic matter either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.

Achieving affordable and durable solutions for household air pollution in biomass-dependent regions at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.

Current approaches to methods for restoring the ecological function of coral reefs under ongoing climate change either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.

Smallholder farmers in Romania lack affordable, low-evaporation water storage to bridge increasingly erratic rainy seasons, forcing crop failure during even short dry spells.

Achieving solvent-free recovery of critical minerals from complex e-waste at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.

Despite recognition of its importance, reliable methods for pathways for achieving high rates of energy efficiency and demand reduction in buildings and industry are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.

Achieving protocols for the rapid and equitable deployment of climate adaptation technologies at meaningful scale demands simultaneous progress in fundamental research, engineering integration and socio-technical systems that work for low- and middle-income settings. Existing efforts remain fragmented relative to the magnitude of the challenge.

Despite recognition of its importance, reliable methods for energy storage and conversion systems optimized for intermittent renewable microgrids are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.

Current approaches to solutions for managing the health and social impacts of large-scale migration driven by climate change either underperform under variable field conditions or generate externalities that undermine long-term sustainability and equity. Closing the gap requires coordinated advances in science, systems design and enabling institutions.

Biodiversity hotspots in Nigeria depend on short-term donor grants that rarely cover more than a few years, leaving conservation programs unable to plan or retain trained staff long-term.

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.

Despite recognition of its importance, reliable methods for high-humidity passive radiative cooling surfaces and coatings are still lacking. Progress is hindered by incomplete mechanistic knowledge, high capital and operational barriers, and the absence of deployment models suited to the contexts of greatest need.