The May 1985 paper, published in top scientific journal Nature, rocked the world: British scientists, backed up by harrowing images, revealed that, over Antarctica, a hole had formed in the ozone layer, the component of the atmosphere that is key in shielding humans from the sun’s cancer-causing ultraviolet rays. At the time, President Ronald Reagan…

via Reagan Administration Officials at First Dismissed the Ozone Hole. Here’s What Changed — TIME

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