In the last 200 years, we human beings have inflicted staggering amounts of violence and destruction on our home planet. The prognosis seems grim. But every so often, we see a glimmer of hope. The latest? Researchers in the Antarctic report that a tear in the ozone layer above the continent is showing signs of healing. They published their findings in the journal Science. [...]
Apparently, the ban is working. Studies over the last 10 years have suggested that the ozone layer has begun to patch itself up in certain places, and the latest research in Antarctica bears that out.
Lead author Susan Solomon is an atmospheric scientist at the Massachusetts Institute of Technology. She and her colleagues have been monitoring the Antarctic ozone hole for years, looking at its area, height, and chemical profile. They now report that, from 2000 to 2015, the size of hole has shrunk by millions of square miles.
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