By: Matthew Cordell on September 26, 2007 The closing plenary of the first day of CGI has started (watch live). It will feature a discussion on children in conflict with Angelina Jolie (see below), Nicolas Kristof, Mohammed Atmar, Valentino Deng, and Alvaro Uribe. But first, President Clinton announced some commitments and made a comment about energy efficiency. He said that if the leading emitters of carbon — including the U.S., China, and India — were to bring their energy efficiency levels to that of Japan, global greenhouse gas emissions would be reduced by 20 percent. Remarkable. For a summary of what that might look like, check out this report.