As global temperatures continue to rise, heat waves are becoming more frequent and severe. Worldwide, communities that face conflict and crisis are hit hardest—with nearly 500,000 heat-related deaths each year. The impacts of heat waves are not just limited to physical health, they also have far-reaching consequences on food availability, water resources and overall livelihoods. As we continue to experience record-breaking temperatures year after year, heat waves are becoming the "new normal" and exacerbating global humanitarian needs.