Decades after the Montreal Protocol, there are signs the hole in the ozone layer has begun to heal
Thursday, June 30, 2016 - 18:31
in Earth & Climate
For the first time in 30 years, the gaping hole in the ozone layer above Antarctica is showing signs of healing. Every year since it was discovered in 1985, scientists have watched the hole grow bigger from one Antarctic spring to the next, eventually covering 10.9 million square miles in 2015....