adaptation as a cost of failed mitigation is to expose millions of poor people in compromised ecosystems to the very dangers that climate policy seeks to avoid. So why would the Tories wish to exclude discussion of alternative strategies? Why would they claim that alternatives would contradict the science, that they are 'at the margin of the debate', and that 'we cannot risk them being wrong'? The answer is simple: lacking a framework of political principles, they have such little scope to set themselves apart from their Labour and Liberal (and for that matter, Green) counterparts that their only option for demonstrating their fitness for leadership is to appear to be taking the issue more seriously. And that's the only option open to their counterparts, too. The result is an escalation of the 'crisis' that ends up looking more like the razor wars than politics. Cynics on both sides of the issue may dismiss Cameron's words as empty rhetoric, as mere postures assumed to embarrass the Labour Party, and to rob the liberals and the Greens of their environmentalist edge. They may well be right, but what is important here is to recognise how dramatically environmental thinking is narrowing political discussion about the future. Crisis politics dominates thinking right across the political spectrum and hides politics behind scientific absolutes which simply do not exist, and cannot be interrogated. Even the Socialist Workers Party is getting in on the act, calling for cuts of ' at least 80 percent [...] by