(BBC) - It has been tipped for great things due to global warming. But one of England's growth industries has fallen victim to more traditional British weather - the rain. Wine production has dropped by more than a third in some parts of the country. And one of the England's most successful sparkling wine vineyards scrapped its harvest completely in order to sustain the "quality" of its brand. So, in the run up to Christmas has the fizz been taken out of the English wine industry?