The 2025 ELLIS Summer School on AI for Earth & Climate Sciences is a flagship event for PhD students, MSc students, and postdocs working at the intersection of machine learning and the geosciences. Throughout an inspiring week of keynotes, hands-on sessions, and collaborative project work, participants will engage with the latest breakthroughs and cutting-edge research in the field. The interdisciplinary program aims to foster a vibrant community of early-career researchers and spark long-lasting collaborations across AI, Earth, and Climate Sciences.