Review Report on the First Order Draft of the IPCC Methodology Report on Short-Lived Climate Forcers (January–February 2026)

This technical review report compiles 33 chapter-level methodological comments submitted during the First Order Draft review of the Intergovernmental Panel on Climate Change (IPCC) Methodology Report on Short-Lived Climate Forcers. The review was conducted over the January–February 2026 period and is structured by volume and chapter. It focuses on internal methodological coherence, interpretability, and consistency with existing IPCC inventory frameworks, including aspects related to data collection, uncertainty assessment, identification of key categories, time-series consistency, quality assurance and quality control, verification, and reporting practices. The document reproduces reviewer comments as submitted through the official IPCC review platform and does not include editorial responses or subsequent draft revisions.