Rivers drying up in England?

When trout waved lazy in the clear chalk streams, Glory was in me …
So wrote poet John Betjeman about his beloved River Kennet. Sadly, the trout have had trouble waving lazy in the Kennet lately. The river, like many in southern England, ran dry this past winter, a victim of high water demand and below-average rainfall. Brown trout and grayling had to be rescued by officers from the Environment