This stretch of the Wharfe in Ilkley looks idyllic, but all is not well beneath the surface. Like most of our rivers, it is in fact, under threat from pollution and the problem is that pollution isn't ...

Liz Bonnin: Hi, I’m Liz Bonnin. It’s impossible to talk about how television has helped our understanding of the Earth and nature without including the godfather of wildlife broadcasting, the great ...