Shoppers in England will face a 5p charge for plastic bags under a new government plan to be announced by Nick Clegg.
The scheme, intended to discourage the use of environmentally-damaging carrier bags, will be set out by the Deputy Prime Minister this weekend at the Liberal Democrat conference in Glasgow.
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Mayor of London Sadiq Khan is backing the scheme.
Sunday will be a fine day across much of Scotland and northern England, with much less coastal mist and low cloud than yesterday.
A spokesperson said the lightning strikes had left the "aircraft fuelling system unavailable."