ACS Final Report Briefing (IMAGE) American Chemical Society Caption Scientists discuss water safety and other water quality issues at a briefing on the American Chemical Society's Global Challenges / Chemistry Solutions Final Report. The briefing was held at the National Press Building Broadcast Center. From left: Charles Haas, Drexel University; William Ball, Johns Hopkins University, and Marc Edwards, Virginia Tech University. Credit Sam Hurd Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.