"Powering the World with Sunlight" is the white paper released following the 2009 Chemical Sciences and Society Symposium. The three-day symposium, which took place in Germany this past summer, included 30 chemists from China, Germany, Japan, the United Kingdom, and the United States. It was organized through a joint effort of the S&T funding agencies and chemical societies of each country, including the American Chemical Society (ACS), the world’s largest scientific society. The symposium series was initiated though the ACS Committee on International Activities in order to offer a unique forum whereby global challenges could be tackled in an open, discussion-based setting, fostering innovative solutions to some of the world’s most daunting challenges. A hard copy of the white paper is available on request from the ACS Office of Public Affairs.