It’s the year 2055, and our worst fears of environmental catastrophe have all come to pass. One man (Pete Postlethwaite) looks back at archive footage from 2007 to find out what we were playing at. He concentrates on six characters, including a British family trying to set up a wind farm and an 80-year-old French Alpine guide, in tears at the retreat of his beloved glaciers. As a conceit this works well, and may affect even those who find the breast-beating a bit much. We are, after all, talking about the end of the world.