the staggeringly high stakes of what we choose to do next. Here is Klein at her most prophetic and philosophical, investigating the climate crisis not only as a profound political challenge but also as a spiritual and imaginative one. Delving into topics ranging from the clash between ecological time and our culture of 'perpetual now,' to rising white supremacy and fortressed borders as a form of 'climate barbarism,' this is a rousing call to action for a planet on the brink. With dispatches from the ghostly Great Barrier Reef, the smoke-choked skies of the Pacific Northwest, post-hurricane Puerto Rico and a Vatican attempting an unprecedented 'ecological conversion', Klein makes the case that we will rise to the existential challenge of climate change only if we are willing to transform the systems that produced this crisis. This is the fight for our lives. On Fire captures the burning urgency of the climate crisis, as well as the energy of a rising political movement demanding change now.