A new map shows the chances of seeing the Northern Lights in the UK tonight (Thursday, March 13). The Met Office's space ...

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

Chalk streams are produced after rainwater has percolated through chalk beds, re-emerging as clear water through many springs, after a period that can be as long as six to 12 months. Water reserves in ...