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What it argues
The Uninhabitable Earth is David Wallace-Wells's catalog of what climate change will do to human civilization if carbon emissions continue on or near their current trajectory. The book began as a widely read 2017 New York magazine article and was expanded into a comprehensive survey of climate impacts across food, water, disease, conflict, economics, and psychology. Wallace-Wells is not a scientist but a journalist, and his approach is explicitly to present the worst-case scientific literature, not the central estimates, because he believes the range of what is possible has not been absorbed by the public.
The book's structure is systematic. Wallace-Wells moves through distinct categories of harm: heat death, as wet-bulb temperatures in parts of the tropics approach the limit of what human physiology can tolerate; hunger, as agricultural yields decline and weather patterns become less predictable; drowning, as sea levels rise; wildfire; freshwater scarcity; dying oceans; unbreathable air; plagues made more likely by warming; and economic collapse. Each chapter marshals scientific research into a relentless accumulation of likely consequences. The tone is neither neutral nor despairing — it is urgent and occasionally polemical.
What it gets right
- 1.
On current emissions trajectories, warming of 3-4 degrees Celsius above pre-industrial levels is likely by 2100, producing impacts across food, water, health, and economics that exceed what most people have absorbed.
- 2.
Wet-bulb temperatures above 35 degrees Celsius are lethal to humans regardless of shade or hydration; parts of the tropics will exceed this threshold more frequently under 4-degree warming.
- 3.
Agricultural yields of staple crops are expected to fall significantly per degree of warming. Feeding ten billion people at 3 or 4 degrees will require transformations beyond anything modern agriculture has managed.
What it covers
Who wrote it
David Wallace-Wells is a journalist and deputy editor of New York magazine, where his 2017 article "The Uninhabitable Earth" became the most widely read piece in the publication's history. He writes about climate, science, and technology and has reported from climate negotiations, scientific conferences, and affected regions. The Uninhabitable Earth, published in 2019, became a New York Times bestseller and a central reference point in public debates about climate communication and climate urgency.
