In the face of climate change and socially responsible investment (SRI) principles, the metrics for driving and managing sustainability will create major data and reporting challenges for most organisations.Water is the most precious of raw materials for industry. Its foot printing and accounting alone create challenges for science and business, with different methodologies used by different sources. Current methods of meeting this challenge appear to undermine water management, and they are less than ideal from an investment management perspective.There are potentially huge data volumes from different sources in the world, in different formats. The measures are taken at different cycles and frequencies, and the models used are likely based on different assumptions. So the data management challenge is not simple, nor is it simple to recycle that data back in an intelligent manner to policymakers and businesses concerned with water management and water risk management. This problem is compounded by the uncertainties in the models used for climate change, and the impact that some predictions of climate change will have on water. This book will explore these issues, and pull together work being done by academia and business to address the challenges, highlighting promising developments. This book will focus on the needs of, and trends facing, several industry sectors, with a regular reference to the finance sector (banking and insurance).