Assessing how climate change impacts the disease burden for older people is critically important because it addresses the intersection of two global megatrends: population ageing, and climate change, as identified by the United Nations, which are two thematic priorities for the Western Pacific region. The urgency of this topic is heightened by the combined challenges of these trends, particularly in middle-income countries where rapid population ageing is occurring alongside significant climate vulnerability. By 2050, 80% of older adults will reside in low- and middle-income countries, with the global proportion of those over 60 expected to nearly double from 12% to 22%.   Older adults are disproportionately vulnerable to climate-related hazards, including extreme weather events, food and water insecurity, and health challenges exacerbated by climate change. The 2024 Lancet Countdown Report reveals that health threats from climate change have reached unprecedented levels. Notably, heat-related deaths among individuals over 65 have increased by 167% since the 1990s. Nations with high population density, low adaptive capacity, and significant exposure to climate risks face heightened adverse effects, as noted by the Intergovernmental Panel on Climate Change (IPCC). Please use Tender Notice No. 256909 as subject to all submission. Only successful candidates will be contacted. Please refer to attached RFP for details of the requirement.