Tag: healed
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Why The Ozone Hole Is on Track To Be Healed By Mid Century
Universal History Archive/Universal Images Group via Getty Images In 1985, atmospheric scientists in Antarctica noticed something troubling. For decades, they’d been measuring the thickness of the ozone layer in the upper atmosphere, the layer of gas that deflects much of the sun’s radiation. Starting in the 1970s, it had started plummeting. By the mid-1980s, they…