New in Thames & Hudson's bestselling `Seventy' series, this visually stunning and highly topical book is an essential guide to those vital environmental issues that concern us all. The volume's seven sections address an extraordinary range of questions. Were the dinosaurs warm-blooded or not? Why do mammals rule the earth? How did the eye evolve? What will happen to climates in the future? Over sixty of the world's most eminent scientists offer privileged insight into their cutting-edge research and findings, writing always to engage the interest of the general reader.