Japan's nuclear crisis has stalled the growing support for a UK "nuclear renaissance", a new poll reveals.  as predicted by commentators last week, a substantial fall-off has occurred in numbers of people backing new atomic stations as part of Britain's energy future, according to the poll by GfK NOP, for Friends of the Earth.  More than a third of Britons - 37 per cent - say they are now more likely to oppose "new nukes" in the UK after the reactor catastrophe at Fukushima.  a