They say make these reviews fun, but there's nothing to laugh at in this authoritative book. Mark Lynas simply tells us what we can expect if the average temperature of the planet goes up, degree by degree. I was recommended to read this by Sir John Houghton, the former chair of the IPCC, and if he and his fellow scientists are right, we're already looking at two degrees of warming. Mark Lynas tells us what to expect, and then paints a straight picture of what to expect if the globe continues to heat up, harking back to times when the world was much hotter than it is now (and humans weren't around of course) and contemplating the social effects of the climate changes that increasing temperature brings. Sceptics can argue all they like about whether it's happening, but after this book no-one can say they didn't know what would happen if global warming turns out to be true.