The Climate Smart Education Systems Initiative (CSESI) is a technical assistance initiative launched in March 2023 that aims to enhance countries' capacities for mainstreaming climate change adaptation and environmental sustainability into education sector plans, budgets and strategies, and for cross-sectoral coordination on climate and environment-related policy and programming. To achieve this goal, the initiative provides support through seven interconnected components of targeted, context-specific technical assistance. This annual progress report provides an overview of the CSESI's scope of work, main processes, and key results achieved under each technical component during the year 2024. It begins by providing an overview of the CSESI's processes and milestones, followed by highlighting the inception and implementation progress made at the country level. It presents consolidated results achieved during the reporting period according to the Global Results Framework and key learning efforts and reflections across the CSESI partners and countries. The global outreach of CSESI and its collaboration with other partners and key developments in risk management are detailed. The report concludes with a forecast for key activities planned for the next 12 months.