As the environmental crisis has intensified, especially regarding climate change and biodiversity loss, we have increasingly recognized that responding adequately requires unprecedented social, economic, technical, and political change. Academic attention across many disciplines has thus turned to questions of what sorts of mechanisms might trigger such changes. We are no longer in a situation where we can satisfy ourselves with simply understanding political processes solely out of curiosity or to test some particular theory of choice: we need to be thinking about how rapid intensive change can be mobilized.