CNN — An ozone hole that formed over the Arctic this spring and eventually grew into the largest ever recorded there has closed. Scientists who were tracking the hole at Copernicus' Atmospheric ...

Unlike the hole that developed over the Arctic, the Antarctic ozone hole in the Southern Hemisphere is typically caused by chemicals such as chlorine and bromine migrating into the stratosphere. This ...

CNN — The Arctic's ozone layer developed a tear, which grew into a hole, and then a bigger hole. Now, it may be biggest hole the North Pole's ozone layer has ever incurred. This hole in the Arctic ...

If there is one piece of good news regarding our planet's future, it's our ozone layer and the ongoing shrinking of its hole. In an update on the latest status of the hole in Earth's ozone layer, the ...