Study finds first direct proof of ozone hole recovery due to chemicals ban
04 January 2018
For the first time, scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion.
A new study in Geophysical Research Letters, a journal of the American Geophysical Union, shows the decline in chlorine, resulting from an international ban on chlorine-containing manmade chemicals called chlorofluorocarbons (CFCs), has resulted in about 20 percent less ozone depletion during the Antarctic winter than there was in 2005, the first year that measurements of chlorine and ozone during the Antarctic winter were made by NASA's Aura satellite.
Image credit: NASA - A view of Earth's atmosphere from space.