Altruistic BehaviorThe title, direction and burden of this book seem to augur almost apocalyptic failure to confront the coming crisis. But, of course, Marshall pulls out an ace near the end.He concludes that while human brains may be hard-wired to not worry about what may or may not happen in two generations, they also have an immense capacity for pro-social, supportive and altruistic behavior.“Climate change is entirely within our capacity for change,” he says, “It is challenging, but far from impossible.”That is good to know. And the book ends with some serious advice about how to make the case for action—and instead of capital punishment, we get generously shouty advice in capital letters. CLIMATE CHANGE IS HAPPENING HERE AND NOW, he reminds us. And he urges campaigners to DROP THE ECO-STUFF, especially the polar bears.Marshall suggests that we really do try to contain global average warming to 2°C. He quotes John Schellnhuber, director of the Potsdam Institute for Climate Impact Research, who told the Australians: “The difference between two and four degrees is human civilization.” And, yes, do think about it.