Summary/Abstract
This report, broken down into four parts, was written in collaboration with the U.S. House of Representatives Science and Technology Committee. The second chapter examines categories of geoengineering, the third examines the need for regulation of geoengineering, the fourth considers the outline of future regulatory arrangements and the final chapter looks at collaborative working between committees in national legislatures. This document includes the oral and written evidence provided to the committee in consultation with the drafting of the report.