The UNICEF Climate Innovation Challenge invites early- and growth-stage frontier technology startups in emerging economies to propose scalable, child-centered solutions using AI, data science, blockchain, and related tools to tackle climate-related threats to children—such as health risks, disaster resilience, and systems adaptation. Selected ventures will receive technical mentorship, visibility and networking opportunities, and support to prepare for future investment. Eligible applicants must be private for-profit companies registered in UNICEF programme countries. The application deadline is 21 October 2025. Climate Innovation Challenge