IAB Europe has launched LEAF 2.0, a major update to its platform supporting the digital advertising ecosystem in measuring and reducing environmental impact. The update enhances usability, functionality, and alignment with current sustainability methodologies. It offers improved emissions estimation and benchmarking through a redesigned interface, streamlined calculations aligned with GMSF v1.2, and benchmarking across locations, environments, buy types, and device types. The creative compression workflow has been refined with a new media library and clearer guidance, while platform management and performance have been improved with better administrative tools, updated authentication, reduced latency, and bug fixes. The underlying digital ad emissions methodology is now documented on GitHub. Guided by the IAB Europe’s Sustainability Standards Committee, these updates aim to facilitate more effective, data-driven sustainability actions. To support industry adoption, two training courses will be offered: a five-day session from 13–17 October 2025 covering emissions measurement and sustainable media planning, and a condensed half-day overview on 27 November 2025 focused on environmental frameworks and campaign carbon reduction strategies.