Solar geoengineering is a theoretical proposal for slowing down global warming by reflecting away a small percentage of incoming sunlight. A growing number of experts are researching geoengineering in an effort to understand its potential for reducing the risks of climate change, and the significant social and physical risks of this technology. 

Panel Discussion moderated by Oliver Morton from The Economist

Stephen Gardiner, University of Washington
David Keith, Harvard University 
Alan Robock, Rutgers University
Daniel Schrag, Harvard University

Watch the video here.