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.

Despite recognition of its importance, reliable methods for passive cooling and ventilation systems for informal settlement housing 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.

Informal-sector workers in Yemen are largely excluded from formal credit because they lack the documented income history traditional lenders require, forcing reliance on high-interest informal lenders.

Despite recognition of its importance, reliable methods for solutions for providing high-quality mental health care in primary care and community settings 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.

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.

Current approaches to higher-order assessments valid under unrestricted AI tool access 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.

Despite recognition of its importance, reliable methods for interventions that reduce the prevalence of non-communicable diseases through population-level action 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 biotechnologies for producing high-performance materials from renewable feedstocks 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.

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.

Affordable housing construction in Philippines is constrained by the high cost of imported cement and steel, while locally viable alternative materials remain underused due to lack of building code recognition.

Despite recognition of its importance, reliable methods for protocols for the ethical development and testing of human longevity interventions 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.

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.

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.

A persistent gap exists in realizing practical, scalable solutions for biotechnologies for engineering organisms that produce high-value compounds from CO2 and renewable energy. Scientific understanding, engineering readiness and institutional capacity remain insufficient to translate promising concepts into durable impact under real-world constraints of cost, skills and governance.

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.

Despite recognition of its importance, reliable methods for institutional designs that make scientific research more responsive to societal needs and values 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.

Despite recognition of its importance, reliable methods for governance models for managing the risks and benefits of geoengineering research and potential deployment 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.

Despite recognition of its importance, reliable methods for solutions for providing reliable digital connectivity in remote and disaster-affected areas 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 pathways for achieving high rates of reuse and repair of consumer products 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.