Current affairs. Demand for water in some parts of England is so close to outstripping supply that we now have our first desalination plant, a last resort to keep the taps of the capital flowing in an emergency. Most of our water comes from rivers, and environmentalists fear we are pushing some of them and the wildlife they support to the edge. With fears over climate change and population growth, Simon Boazman investigates whether the water industry and its regulators are doing enough to protect the nation's rivers.
