LONDON (Reuters) - A ban on the recreational use and possession of nitrous oxide, also known as 'laughing gas', comes into force in Britain on Wednesday, with people caught producing, supplying or selling the drug facing long prison sentences. The substance, which causes a feeling of euphoria, relaxation and dissociation from reality, has grown in popularity, particularly among young people but the government said it fuelled nuisance behaviour and posed a health hazard. "For too long the use of this drug in public spaces has contributed to anti-social behaviour which is a blight on communities...
