This report, published by the UK's Royal Society, reviews evidence about solar radiation management (SRM), a 'geoengineering' technique that involves deliberate intervention in the climate to counteract global warming, which was gathered during a year-long project — Solar Radiation Management Governance Initiative. It also summarises issues raised during the project by 27 experts from 17 countries and other stakeholders.

The report explores the scientific, ethical, political, social and technological challenges raised by proposals for research into SRM, as well as perspectives on how to address these challenges. It offers no recommendations, but states that the uncertainty about the risks and benefits of SRM can be resolved with the successful governance of research, and  concludes with a number of 'messages' that provide a foundation for greater dialogue.