The World Health Organization (WHO) was officially accredited by the Green Climate Fund (GCF) on March 26, 2026, gaining direct access to the world's largest dedicated climate finance mechanism. The milestone, over a decade in the making since WHO first applied in 2015, could reshape how climate-health projects are funded and procured across more than 120 developing countries. For contractors, consultants, and suppliers working in health infrastructure, environmental services, and technology, this opens a procurement frontier that has been dramatically underfunded until now.
The Accreditation: What WHO Can Now Do
GCF accreditation means that WHO can now directly design, submit, and implement climate finance projects funded by the Green Climate Fund — without needing to route proposals through intermediary accredited entities. Previously, WHO could only serve as a GCF Readiness Delivery Partner, helping countries prepare climate-health strategies and access preparatory grants. Now it can submit full-scale project proposals and manage implementation directly.
This is significant because WHO brings unmatched technical authority on health systems in developing countries. With over 25 years of climate-health policy leadership and active programs in more than 30 countries, the organization can now channel GCF funding into projects it designs and oversees end-to-end.
"Climate and health action saves lives," said Dr. Ruediger Krech, WHO Director of Health Promotion. "WHO will use this opportunity to ensure low- and middle-income countries have access to resources needed to build climate-resilient health systems."
The accreditation aligns with WHO's General Programme of Work 2025-2028 (GPW14), which makes climate response a strategic priority. It also builds on the Alliance for Transformative Action on Climate and Health (ATACH), launched in 2022, which now counts over 200 member countries and partners committed to climate-resilient, low-carbon health systems.
Why This Matters: The Health-Climate Funding Gap
The accreditation addresses one of the starkest gaps in international climate finance. Despite climate change being described by WHO as "the single biggest health threat facing humanity," the health sector receives a vanishingly small share of climate funding:
- Only 0.5% of multilateral climate funding explicitly addresses human health
- Just 2% of adaptation funding reaches health projects
- Only 5% of climate adaptation funding supports health-related initiatives
- 91% of national climate action plans (NDCs) prioritize health — yet funding allocations do not match
This disconnect means that while virtually every developing country recognizes climate-health as a priority in their national plans, the money to act on those priorities has been almost nonexistent. WHO's accreditation provides a credible, technically capable channel to close this gap.
The numbers involved are substantial. The Green Climate Fund approved a record USD 3.26 billion in 2025 alone, bringing its total portfolio to 336 projects worth USD 19.3 billion in GCF resources — or USD 78.7 billion including co-financing. Even redirecting a fraction of this toward health would represent a step change from the current USD 32.5 million in direct GCF health investments.
Procurement Implications: What Gets Built and Bought
The WHO-GCF accreditation will generate procurement across multiple sectors and contract types. Based on existing GCF health projects and WHO's stated priorities, the following areas are most likely to see new tenders:
Climate-Resilient Health Infrastructure
The most capital-intensive category involves retrofitting and constructing health facilities designed to withstand climate impacts — floods, cyclones, extreme heat, and water scarcity. Existing GCF projects offer a blueprint:
- Cook Islands: USD 12.5 million to strengthen climate resilience of national health systems, including facility upgrades
- Laos: USD 25 million to enhance health system resilience across 25 rural districts, covering infrastructure and community capacity
- Pakistan: A GCF-funded zero-emissions bus rapid transit system that reduces urban air pollution deaths — a model for health co-benefit projects
Future WHO-led projects are likely to include construction and renovation of climate-proof clinics and hospitals, solar power and backup energy systems for healthcare facilities, water harvesting and treatment systems for health centers, and cold chain infrastructure for vaccine storage in heat-affected regions.
These projects typically require works contracts for construction and supplies contracts for medical and energy equipment.
Early Warning and Surveillance Systems
WHO has deep expertise in disease surveillance, and climate-health early warning systems are a priority area for GCF funding. These systems predict and track climate-sensitive diseases like malaria, dengue, cholera, and heat-related illness. Procurement needs include:
- Environmental and epidemiological monitoring platforms
- Data analytics and AI-based predictive modeling software
- Communication infrastructure for remote health facilities
- Training and capacity-building programs for health workers
This creates opportunities for technology and IT firms providing digital health solutions and environmental monitoring equipment, as well as consulting firms specializing in public health informatics.
Pharmaceutical and Medical Supply Chains
Climate change disrupts pharmaceutical supply chains through extreme weather events, temperature excursions, and changing disease patterns. WHO-led GCF projects will likely procure:
- Temperature-controlled storage and transport systems
- Essential medicines and vaccines for climate-sensitive diseases
- Diagnostic equipment for emerging climate-related health threats
- Water purification systems for healthcare facilities
These health and medical tenders will be particularly relevant in Sub-Saharan Africa and Southeast Asia, where climate-health impacts are most acute.
Consulting and Technical Assistance
Before infrastructure gets built, countries need vulnerability assessments, adaptation plans, and project preparation. The GCF has already invested over USD 5.2 million helping 15 countries conduct climate-health vulnerability assessments and develop health national adaptation plans. With WHO now able to submit projects directly, this preparatory work will scale significantly.
Consulting procurement will cover climate-health vulnerability and risk assessments, health system adaptation strategy development, environmental and social impact assessments, project management and monitoring and evaluation services, and capacity building and training programs.
Countries and Regions Most Affected
WHO's climate-health work spans all developing regions, but certain areas will see the earliest and largest procurement volumes:
Sub-Saharan Africa
Africa faces the most severe climate-health impacts and has the weakest health infrastructure to cope. WHO already operates climate-health programs across the continent, and GCF has channeled USD 557 million in humanitarian-adjacent funding to the region through other channels. Countries like Kenya, Senegal, Tanzania, and Nigeria — where WHO has established country offices and climate-health programs — are likely to see early project submissions.
The GCF has already funded climate-friendly cooking programs in Kenya and Senegal, and metropolitan climate resilience in Liberia — all with significant health co-benefits.
South and Southeast Asia
The region faces extreme heat, flooding, and vector-borne disease expansion. GCF's USD 25 million Laos health resilience project serves as a template for similar initiatives across Bangladesh, Nepal, Cambodia, and Myanmar. The ADB has also been active in climate-resilient health infrastructure in the Pacific, suggesting potential for joint WHO-ADB-GCF projects.
Small Island Developing States (SIDS)
SIDS face existential climate threats and have limited health system capacity. The Cook Islands USD 12.5 million project demonstrates GCF's willingness to fund health resilience in small states. WHO-led proposals for Pacific and Caribbean island nations could generate concentrated procurement in a small number of high-impact facilities.
Central Asia and Glacier-Dependent Regions
The GCF recently approved a landmark USD 250 million "Glaciers to Farms" program — its largest climate adaptation project — supporting nine glacier-dependent developing countries. While primarily focused on water and agriculture, the health components of glacier-melt adaptation (waterborne disease, food security, displacement) could create additional WHO-led project pipelines.
The Broader Climate-Health Financing Landscape
WHO's GCF accreditation does not happen in isolation. Several converging developments amplify its significance:
GCF-Global Fund Partnership: The Green Climate Fund and the Global Fund to Fight AIDS, Tuberculosis and Malaria have formally partnered to tackle climate-health intersections, particularly malaria adaptation and health system strengthening. "Many of today's health emergencies are consequences of climate inaction," said Mafalda Duarte, GCF Executive Director.
USD 122 Million Co-Investment Facility: At COP28, GCF authorized USD 1.5 million (matched by USD 1.56 million from UNDP and WHO) to develop a Climate and Health Co-Investment Facility targeting USD 122 million across 12 countries. WHO's accreditation makes this facility operational.
Record MDB Climate Finance: Multilateral development banks collectively channeled a record USD 137 billion in climate finance in 2024, a 10% increase year-on-year. Health remains a tiny fraction, but with WHO now positioned as a direct GCF implementer, the institutional barrier to scaling health-climate investments has been removed.
Donor Realignment: As traditional bilateral donors — including the United States and United Kingdom — cut direct health aid, multilateral climate finance channels like GCF become increasingly important alternative funding sources. The GCF's Board has 50% representation from developing countries, insulating it somewhat from bilateral policy shifts.
What This Means for Contractors
Companies and consultants seeking to benefit from this new funding channel should take several concrete steps:
- Register with WHO and GCF procurement systems: WHO uses its own procurement portal, while GCF-funded projects route procurement through accredited entities. Registering with both ensures visibility when tenders are published.
- Monitor health-sector tenders in climate-vulnerable countries: The intersection of health and climate creates a niche but growing market. Focus on countries where WHO has active climate-health programs, particularly in Sub-Saharan Africa and Southeast Asia.
- Build climate-health credentials: Projects will require demonstrated experience in both health systems and climate adaptation. Joint ventures between health infrastructure firms and environmental consultancies will be well-positioned.
- Track GCF Board meetings: The GCF Board meets three times per year to approve new projects. Meeting documents and approved project lists are published on the GCF website, providing advance notice of procurement pipelines.
- Consider readiness and preparation contracts: Before major infrastructure projects, GCF funds readiness activities — vulnerability assessments, feasibility studies, and national adaptation plans. These smaller consulting contracts are often awarded first and can position firms for larger implementation contracts.
Looking Ahead
WHO's first GCF project proposals are expected to emerge in the coming months, with the next GCF Board meeting likely to consider initial submissions. The USD 122 million Climate and Health Co-Investment Facility across 12 countries represents the most immediate pipeline, with feasibility studies and procurement planning already underway.
The health-climate funding gap — where only 0.5% of climate finance reaches health — will not close overnight. But WHO's accreditation removes a critical institutional bottleneck, creating a direct channel between the world's largest climate fund and its leading health authority. For procurement professionals, this is the time to position for what could become one of the fastest-growing segments of development-funded contracting.
Browse health and medical tenders, energy and environment tenders, and water and sanitation tenders on BidsFactory to find current opportunities in climate-health intersecting sectors.
