Giulio Boccaletti, Ph.D., is a globally recognized expert on natural resource security and environmental sustainability. Trained as a physicist and climate scientist, he holds a doctorate from Princeton University, where he was a NASA Earth Systems Science Fellow. He has been a research scientist at the Massachusetts Institute of Technology, a partner of McKinsey & Company, and the chief strategy officer of The Nature Conservancy, one of the largest environmental organizations in the world. He writes on environmental issues for news media, and is an expert contributor to the World Economic Forum. His work on water has been featured in the PBS documentary series H2O: The Molecule that Made Us. He lives in London.