For users of water-based sanitation, most of us give little thought to what happens after we hear the sound of the toilet flushing. Wooooosh -- out of sight, out of mind. Certainly, there is…

Guy Hutton |

A few years ago I had the pleasure of swimming in a big, heated pool. Outdoors. In winter. It sounds like an unaffordable luxury, and in most places, it is. But in Iceland, you can swim all year…

David Lawrence |