With so many climate scientists predicting global meltdown within our life-time, some individuals are taking radical steps to ensure they have the necessary survival skills to cope in the event of a major crisis, writes Julia Stephenson

Neil Strauss, author of best-selling men’s dating manual, The Game, was so shocked by the Lord of the Flies type anarchy that sprung up in the aftermath of Hurricane Katrina in New Orleans that he has since reinvented himself as a survivalist and written a timely new book, Emergency - one man’s story of a dangerous world and how to stay alive in it.

'All it would take,' he says, 'is one war, one riot, one dirty bomb, one natural disaster, one economic catastrophe, one vial containing one virus to bring it all smashing down.'

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