Take Me to the Source

Colourless, tasteless, odourless, ageless: water is both the simplest thing on earth and the most complex. We cannot live without it yet it kills six thousand children a day. It is the ultimate renewable resource but we pollute it without thinking twice. Why, if water is so valuable does nobody want to pay for it unless it comes in a designer bottle? Is it really the oil of the twenty-first centur...