PETER ROGERS is a leading water expert and Professor of Environmental Engineering at Harvard University, USA and a Senior Advisor to the Global Water Partnership. He has worked in over twenty-five countries on the issue of water shortage and was awarded the Warren Hall Prize from the Universities Council on Water Resources. He has written for many scientific journals including Scientific American on this subject, and has received a Guggenheim, and a Twentieth Century Fellowship. SUSAN LEAL is the former General Manager of the San Francisco Public Utilities Commission, USA. While running this large water and power utility, she established the first Climate Change consortium of U.S. water utilities. Leal is currently a Fellow of the Advanced Leadership Initiative at Harvard University, USA and heads an environmental consulting firm based in San Francisco, California. She also has held elected and appointed offices in California.