Paul Whitehouse visits River Wharfe in Ilkley, West Yorkshire to see how it is affected by pollution from many sources.

Drained almost dry in places, and polluted in others. Less than a fifth of England’s rivers are healthy, and climate change is putting more pressure on them. Our rivers need help. "There’s something ...

The dark green areas towards the bottom left of the map indicate some planted forest. It is possible that you might have to identify river features directly from an aerial photo or a satellite ...