But we will not win the battle for a stable climate by trying to beat the bean counters at their own game—arguing, for instance, that it is more cost-effective to invest in emission reduction now than disaster response later. We will win by asserting that such calculations are morally monstrous, since they imply that there is an acceptable price for allowing entire countries to disappear, for leaving untold millions to die on parched land, for depriving today’s children of their right to live in a world teeming with the wonders and beauties of creation.