Summary/Abstract
This meeting report summarizes discussions of three Working Groups to the IPCC’s Fifth Assessment Report (AR5) on geoengineering, including carbon dioxide removal. The Expert Meeting provided a valuable opportunity for experts from a wide range of disciplines and across Working Group 1 (WGI), WGII, and WGIII to discuss terminology, to clarify concepts and definitions, and to consider emerging issues. The report also contains summaries of meeting discussions of geoengineering approaches and cross-cutting issues, as well as extended abstracts for the meeting’s keynote and poster presentations.