The Largest Arctic Ozone Hole Ever Recorded is Now Closed
5/1/2020 - By Sophie Lewis. Just as suddenly as it first formed, a record-breaking ozone hole has healed. The largest ozone hole to ever open up over the Arctic is now closed, after first opening up earlier this spring. Scientists monitoring the "unprecedented" hole at the Copernicus Atmospheric Monitoring Service (CAMS) announced the closure last… SEE MORE