Climate fiction — cli-fi — is the genre that has emerged to process the fact of anthropogenic climate change in narrative form. The best cli-fi does not simply set a story in a changed world; it uses the changed world to illuminate something about the human relationship to nature, to time, and to the consequences of collective action taken and not taken. For readers who want to go deeper into those questions than most cli-fi novels go, the nonfiction and literary writing on the nature writing shelf is where the genre's concerns are most fully developed.
Underland by Robert Macfarlane is the book that most directly engages with the climate crisis from within serious literary nonfiction. Macfarlane descends into underground spaces — catacombs, karst caves, nuclear waste repositories — to think about deep time: what we owe to a future beyond our imagining, what it means to be responsible for consequences that will persist for 100,000 years. The chapter on the Finnish nuclear waste repository at Onkalo, where engineers are designing warning systems for civilizations that may not share our languages or assumptions, is the most sustained piece of writing about long-term climate responsibility that the genre has yet produced. It is not comforting, and it is not supposed to be.
Braiding Sweetgrass by Robin Wall Kimmerer is, among other things, a book about a different relationship with the natural world — one that does not begin from the assumption that plants and animals are resources but from the Indigenous understanding that they are relatives, with their own forms of intelligence and their own claims on our attention. Kimmerer is a botanist, and the science she brings to the book is rigorous. But the argument she makes — that the ecological crisis is partly a crisis of relationship, a failure of reciprocity — gives cli-fi readers something to do with their climate anxiety besides despair.
A Sand County Almanac by Aldo Leopold was published in 1949 and contains the Land Ethic, the philosophical foundation of modern conservation: the argument that the community to which humans belong extends to the soil, water, plants, and animals of the land, and that the question of whether an action is right must include its effects on that community. Leopold was writing before the climate crisis was legible, but his argument is the origin of the intellectual tradition that cli-fi draws on. The almanac section — monthly observations from a Wisconsin farm — shows what it looks like to pay attention to a specific place with genuine care.
Desert Solitaire by Edward Abbey is an earlier and angrier version of the same argument. Abbey spent two seasons as a ranger in Arches National Monument and used the experience to think about what industrial civilization destroys when it builds roads into wilderness. The anger is specific: Abbey names the Bureau of Land Management, the paved roads, the tourists who see the landscape through glass, and the economic logic that makes the destruction seem rational. For cli-fi readers who want a companion volume with more explicit confrontation, Desert Solitaire supplies it.
The Peregrine by J.A. Baker is the most radical book on the nature writing shelf, and in some ways the most useful companion to cli-fi. Baker spent a year following peregrine falcons across the English countryside, trying to eliminate the self that observes and become the thing observed. The prose is so concentrated it reads like poetry. What Baker was watching, in 1967, was a species in catastrophic decline because of DDT — he knew it and watched anyway, trying to record what was being lost before it was gone. That posture — the precise witness of what is disappearing — is what the best cli-fi shares with the best nature writing.
The climate crisis has produced a new literary need: for books that can hold the scale of the problem while also holding the texture of specific places, animals, and relationships. The nature writing shelf was always about that, which is why it reads so differently in 2026 than it did when most of these books were written. The urgency was always there; the context has changed to make it audible.