Book excerpt: We all know what water is, and we often take it for granted. But the spectre of a worldwide water crisis suggests that there might be something fundamentally wrong with the way we think about water. Jamie Linton dives into the history of water as an abstract concept, stripped of its environmental, social, and cultural contexts. Reduced to a scientific abstraction - to mere H20 - this concept has given modern society licence to dam, divert, and manipulate water with apparent impunity. Part of the solution to the water crisis involves reinvesting water with social content, thus altering the way we see water. An original take on a deceptively complex issue, What Is Water? offers a fresh approach to a fundamental problem.