By Paul Hawken, Amory Lovins and L. Hunter Lovins (Rocky Mountain Institute, 1999). Providing water for the world needn't be a matter of governments pouring endless cash into depleting the resource and downgrading the environment - "making the same mistakes with water that they did with energy". Nor do we have to "turn lawns into cactus farms". This book is full of documented success stories and ideas for making better use of less water: farmers watering as-needed with drip irrigation, alternatives to "foolish" toilets, growing fish to enrich agricultural water, smaller-scale water treatment and The Living Machine.