Cal Flyn visits the eeriest and most desolate places on Earth that due to war, disaster, disease, or economic decay, have been abandoned by humans. What she finds every time is an "island" of teeming new life: nature has rushed in to fill the void faster and more thoroughly than even the most hopeful projections of scientists. Islands of abandonment is a tour through these new ecosystems, in all their glory, as sites of unexpected environmental significance, where the natural world has reasserted its wild power and promise. And while it doesn't let us off the hook for addressing environmental degradation and climate change, it's a case that hope is far from lost, and is ultimately a story of redemption. The most polluted spots on Earth can be rehabilitated through ecological processes, and in fact they already are.