Book excerpt: At the level of developing a progressive and critical theoretical understanding of unsustainability, it argues for the importance of integrating vulnerability, which has been largely neglected by both mainstream western political theory and analyses of the current global ecological crisis. It suggests that valuable insights into the causes of and alternatives to unsustainability can be found in a critical embracing of human vulnerability and dependency as both constitutive and ineliminable aspects of what it means to be human. Rather than seeing invulnerability as the appropriate response, the book defends resilience, and the ability to 'cope with' rather than 'solve' vulnerability, as more productive.