Stuff: The ‘twin tsunamis’ of global warming and peak oil could spell TEOTWAWKI – the end of the world as we know it – and already, quietly, some people are getting prepared because they believe we are talking years rather than decades. Helen, a petite 42-year-old Nelson housewife, is racing to build her own personal TEOTWAWKI lifeboat. Earlier this year, she and her American husband cashed-up to buy a 21ha farm in a remote, easily defensible, river valley backing onto the Arthur …