Sweat Is Helping You Survive Climate Change

This story originally appeared on Grist and is part of the Climate Desk collaboration.

Under the relentless sun in Africa, the birthplace of humanity, every living thing had to find a way to beat the heat. Lions rested in the shade, termites built giant ventilation mounds, and elephants evolved giant ears that could flap like fans. Around 2 million years ago, our ancestors perfected the weirdest technique of them all: pushing water from inside our bodies to outside, a gift for enduring sweltering temperatures.

Other animals can sweat a bit, but not like us. Running around in the heat, a person can shed more than

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