Author(s): Roger Canavan
We could not live without water. Almost two-thirds of our body weight is water. We rely on it to keep ourselves clean, to keep our bodies nourished, and to get rid of waste. But water can also carry deadly germs and poisons. One of the greatest challenges for scientists and governments today is to make sure that everyone has access to the clean, safe water that they need.
Roger Canavan is an accomplished author who has written, edited and contributed to more than a dozen books about science and other educational subjects.