The Asian tsunami of Christmas 2004 killed more than a quarter of a million people and shattered the lives of many more. The ruthless indifference of the forces of nature to our fragile existence on the surface of the planet could not have been more shockingly demonstrated, nor the sheer scale of their power more tragically displayed.Massive earthquakes and super-eruptions, collision with vast boulders from space, the insidious, potentially catastrophic...