Cold People by Tom Rob Smith

After a sudden alien ultimatum forces all of humanity to evacuate to Antarctica within thirty days, survivors scramble to endure a brutal new world of ice and scarcity. Years later, a fragile society forms, driven by radical innovation and genetic engineering to adapt bodies and ecosystems to the cold. As engineered creations blur the line between human and machine-made life, competing visions of progress spark moral dilemmas, power struggles, and questions about what must be preserved—and what can be sacrificed—for humanity to continue.

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